diff --git a/src-modules/org/opencms/workplace/tools/accounts/CmsAccountsToolHandler.java b/src-modules/org/opencms/workplace/tools/accounts/CmsAccountsToolHandler.java
index a1f2f59cdb6..71e9d9865d1 100644
--- a/src-modules/org/opencms/workplace/tools/accounts/CmsAccountsToolHandler.java
+++ b/src-modules/org/opencms/workplace/tools/accounts/CmsAccountsToolHandler.java
@@ -280,7 +280,7 @@ public boolean isVisible(CmsWorkplace wp) {
         } catch (CmsException e) {
             // ignore
             if (LOG.isErrorEnabled()) {
-                LOG.error(e.getLocalizedMessage(), e);
+                LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-de882cc42f6c52d108c1dd365dc25a6d");
             }
         }
 
diff --git a/src/org/opencms/db/CmsSecurityManager.java b/src/org/opencms/db/CmsSecurityManager.java
index effba4928c1..b540ed355f3 100644
--- a/src/org/opencms/db/CmsSecurityManager.java
+++ b/src/org/opencms/db/CmsSecurityManager.java
@@ -3259,7 +3259,7 @@ public boolean hasRoleForResource(CmsDbContext dbc, CmsUser user, CmsRole role,
                     dbc.getRequestContext().getRemoteAddress()));
         } catch (CmsException e) {
             if (LOG.isErrorEnabled()) {
-                LOG.error(e.getLocalizedMessage(), e);
+                LOG.error("Unexpected error: mobb-a74bd042a925976dafb8301dad8e3ac6", e);
             }
             // any exception: return false
             return false;
diff --git a/src/org/opencms/db/generic/CmsProjectDriver.java b/src/org/opencms/db/generic/CmsProjectDriver.java
index 16a6b9628a0..f41e0edb195 100644
--- a/src/org/opencms/db/generic/CmsProjectDriver.java
+++ b/src/org/opencms/db/generic/CmsProjectDriver.java
@@ -1158,7 +1158,7 @@ public void publishDeletedFolder(
                 if (LOG.isErrorEnabled()) {
                     LOG.error(
                         Messages.get().getBundle().key(Messages.LOG_REMOVING_RELATIONS_1, currentFolder.getRootPath()),
-                        e);
+                        "Unexpected error: mobb-eb55f8774af453e6b7cbe311416796db");
                 }
                 throw e;
             }
diff --git a/src/org/opencms/gwt/CmsVfsService.java b/src/org/opencms/gwt/CmsVfsService.java
index 2b16d7b7c06..07a964ebfa4 100644
--- a/src/org/opencms/gwt/CmsVfsService.java
+++ b/src/org/opencms/gwt/CmsVfsService.java
@@ -791,7 +791,7 @@ public CmsHistoryResourceCollection getResourceHistoryInternal(CmsUUID structure
             } catch (CmsVfsResourceNotFoundException e) {
                 LOG.info(e.getLocalizedMessage(), e);
             } catch (Exception e) {
-                LOG.error(e.getLocalizedMessage(), e);
+                LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-b8938f3c6a33568f2d0a196eec835aef");
             }
         } else {
             for (I_CmsHistoryResource historyRes : versions) {
diff --git a/src/org/opencms/i18n/CmsMessageToBundleIndex.java b/src/org/opencms/i18n/CmsMessageToBundleIndex.java
index 7ab21278d38..4072e6aa035 100644
--- a/src/org/opencms/i18n/CmsMessageToBundleIndex.java
+++ b/src/org/opencms/i18n/CmsMessageToBundleIndex.java
@@ -80,7 +80,7 @@ public CmsMessageToBundleIndex(Collection<String> bundleNames, Locale locale) {
                     }
                 }
             } catch (MissingResourceException e) {
-                LOG.debug("missing resource for " + bundleName + ":" + e.getMessage(), e);
+                LOG.debug("missing resource for " + bundleName + ":" + "Unexpected error: mobb-cd373e521902a5d8e561c4aee28437e6", e);
             }
         }
     }
diff --git a/src/org/opencms/importexport/CmsImportVersion10.java b/src/org/opencms/importexport/CmsImportVersion10.java
index 340510d5434..3bbe2de1eca 100644
--- a/src/org/opencms/importexport/CmsImportVersion10.java
+++ b/src/org/opencms/importexport/CmsImportVersion10.java
@@ -1022,7 +1022,7 @@ public void associateOrgUnitResources() {
                             LOG.warn(e.getLocalizedMessage());
                         }
                         if (LOG.isDebugEnabled()) {
-                            LOG.debug(e.getLocalizedMessage(), e);
+                            LOG.debug("Unexpected error: mobb-cf8a1fdd1a3cf3eac5e5d707c4dfed56", e);
                         }
                     }
                 }
@@ -1041,7 +1041,7 @@ public void associateOrgUnitResources() {
                         LOG.warn(e.getLocalizedMessage());
                     }
                     if (LOG.isDebugEnabled()) {
-                        LOG.debug(e.getLocalizedMessage(), e);
+                        LOG.debug("Unexpected error: mobb-66c57095834764900997223a61151596", e);
                     }
                 }
 
diff --git a/src/org/opencms/jsp/CmsJspTagContentShow.java b/src/org/opencms/jsp/CmsJspTagContentShow.java
index 0b2adfd6b8d..0f28794877d 100644
--- a/src/org/opencms/jsp/CmsJspTagContentShow.java
+++ b/src/org/opencms/jsp/CmsJspTagContentShow.java
@@ -128,7 +128,7 @@ public static String contentShowTagAction(
                     // read the element from the content
                     content = xmlContent.getStringValue(cms, element, locale);
                 } catch (Exception e) {
-                    LOG.error(Messages.get().getBundle().key(Messages.LOG_ERR_CONTENT_SHOW_1, element), e);
+                    LOG.error(Messages.get().getBundle().key(Messages.LOG_ERR_CONTENT_SHOW_1, element), "Unexpected error: mobb-1e4d87d70afa0824a17ef730608d861a");
                     content = null;
                 }
             } else {
diff --git a/src/org/opencms/jsp/search/config/parser/CmsXMLSearchConfigurationParser.java b/src/org/opencms/jsp/search/config/parser/CmsXMLSearchConfigurationParser.java
index 3c9f7ab43a8..06e21b24674 100644
--- a/src/org/opencms/jsp/search/config/parser/CmsXMLSearchConfigurationParser.java
+++ b/src/org/opencms/jsp/search/config/parser/CmsXMLSearchConfigurationParser.java
@@ -936,7 +936,7 @@ private I_CmsSearchConfigurationSortOption parseSortOption(final String pathPref
                 Messages.get().getBundle().key(
                     Messages.ERR_SORT_OPTION_NOT_PARSABLE_1,
                     XML_ELEMENT_SORTOPTION_SOLRVALUE),
-                e);
+                "Unexpected error: mobb-3a7b02fcacb5589e1bcfd77cb83b5810");
             return null;
         }
     }
diff --git a/src/org/opencms/jsp/util/CmsJspStandardContextBean.java b/src/org/opencms/jsp/util/CmsJspStandardContextBean.java
index 181822773d1..e66419cdfda 100644
--- a/src/org/opencms/jsp/util/CmsJspStandardContextBean.java
+++ b/src/org/opencms/jsp/util/CmsJspStandardContextBean.java
@@ -1424,7 +1424,7 @@ public Map<String, List<CmsContainerElementWrapper>> getElementBeansInContainers
                                 element.initResource(m_cms);
                                 containerElements.add(new CmsContainerElementWrapper(element));
                             } catch (Exception e) {
-                                LOG.error(e.getLocalizedMessage(), e);
+                                LOG.error("Unexpected error: mobb-a0837b73311958b1054f43e92b197205", e);
                             }
                         }
                     }
@@ -2881,7 +2881,7 @@ protected I_CmsFormatterBean getElementFormatter(CmsContainerElementBean element
                     try {
                         width = Integer.parseInt(container.getWidth());
                     } catch (Exception e) {
-                        LOG.debug(e.getLocalizedMessage(), e);
+                        LOG.debug("Unexpected error: mobb-54509ef1565ea8e1a732e83e272ef952", e);
                     }
                     formatter = formatters.getDefaultSchemaFormatter(container.getType(), width);
                 } catch (CmsException e1) {
diff --git a/src/org/opencms/jsp/util/CmsJspStatusBean.java b/src/org/opencms/jsp/util/CmsJspStatusBean.java
index fce7eae1bb9..4d9aadc4aa7 100644
--- a/src/org/opencms/jsp/util/CmsJspStatusBean.java
+++ b/src/org/opencms/jsp/util/CmsJspStatusBean.java
@@ -464,7 +464,7 @@ public String keyStatus(String keyName) {
     public void logException() {
 
         if (m_exception != null) {
-            LOG.error(m_exception.getMessage(), m_exception);
+            LOG.error("Unexpected error: mobb-4fd8b551b1e0042aabbb60d3abf79986", m_exception);
         }
     }
 
diff --git a/src/org/opencms/search/CmsSearchManager.java b/src/org/opencms/search/CmsSearchManager.java
index 65ebe771bb1..53c9df0aaeb 100644
--- a/src/org/opencms/search/CmsSearchManager.java
+++ b/src/org/opencms/search/CmsSearchManager.java
@@ -1710,7 +1710,7 @@ public void initialize(CmsObject cms) throws CmsRoleViolationException {
             m_adminCms = OpenCms.initCmsObject(cms);
         } catch (CmsException e) {
             // this should never happen
-            LOG.error(e.getLocalizedMessage(), e);
+            LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-8dc09cf9cd9e7fe4f447aa7d943d5e68");
         }
         // make sure the site root is the root site
         m_adminCms.getRequestContext().setSiteRoot("/");
diff --git a/src/org/opencms/search/documents/CmsDocumentDependency.java b/src/org/opencms/search/documents/CmsDocumentDependency.java
index 9db4be2c0cd..dad5c97f2d6 100644
--- a/src/org/opencms/search/documents/CmsDocumentDependency.java
+++ b/src/org/opencms/search/documents/CmsDocumentDependency.java
@@ -277,7 +277,7 @@ public static CmsDocumentDependency fromDependencyString(String input, String ro
                 }
             } catch (Exception ex) {
                 if (LOG.isErrorEnabled()) {
-                    LOG.error(ex.getLocalizedMessage(), ex);
+                    LOG.error("Unexpected error: mobb-a5b3bea45aff339a7b61956114a3db9d", ex);
                 }
             }
         }
diff --git a/src/org/opencms/staticexport/CmsStaticExportManager.java b/src/org/opencms/staticexport/CmsStaticExportManager.java
index 32ed8b6bb9c..3442aecb2ad 100644
--- a/src/org/opencms/staticexport/CmsStaticExportManager.java
+++ b/src/org/opencms/staticexport/CmsStaticExportManager.java
@@ -1711,7 +1711,7 @@ public void initialize(CmsObject cms) {
             try {
                 rule.setExportPath(normalizeExportPath(rule.getExportPathConfigured()));
             } catch (CmsIllegalArgumentException e) {
-                CmsLog.INIT.warn(e.getMessageContainer());
+                CmsLog.INIT.warn("Unexpected error: mobb-084d407a93a41f2da953a2c2b7fa7d82");
                 rule.setExportPath(m_staticExportPath);
             }
             try {
diff --git a/src/org/opencms/ui/dialogs/history/CmsHistoryDialog.java b/src/org/opencms/ui/dialogs/history/CmsHistoryDialog.java
index f7f952d325d..504f346eb88 100644
--- a/src/org/opencms/ui/dialogs/history/CmsHistoryDialog.java
+++ b/src/org/opencms/ui/dialogs/history/CmsHistoryDialog.java
@@ -189,7 +189,7 @@ public void onSelect(CheckBox box) {
             m_compareButton.get().setEnabled(false);
             m_listContainer.addComponent(historyTable);
         } catch (CmsException e) {
-            LOG.error(e.getLocalizedMessage(), e);
+            LOG.error("Unexpected error: mobb-6e852a9e19cfd375f628922b1ef63dee", e);
         }
         addButton(createCloseButton());
         displayResourceInfo(m_context.getResources());
diff --git a/src/org/opencms/widgets/CmsAddFormatterWidget.java b/src/org/opencms/widgets/CmsAddFormatterWidget.java
index baa4a4a7f13..ab843cde5af 100644
--- a/src/org/opencms/widgets/CmsAddFormatterWidget.java
+++ b/src/org/opencms/widgets/CmsAddFormatterWidget.java
@@ -155,7 +155,7 @@ protected static List<CmsSelectWidgetOption> getFormatterOptionsStatic(
                 CmsSelectWidgetOption option = getWidgetOptionForFormatter(cms, formatterBean);
                 result.add(option);
             } catch (Exception e) {
-                LOG.error(e.getLocalizedMessage(), e);
+                LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-e7ef51e2f61e3fb74ead965a257bdf0f");
             }
         }
         return result;