diff --git a/src-modules/org/opencms/workplace/tools/searchindex/sourcesearch/CmsSearchReplaceThread.java b/src-modules/org/opencms/workplace/tools/searchindex/sourcesearch/CmsSearchReplaceThread.java
index e1669e2e3c9..92be36ee1c3 100644
--- a/src-modules/org/opencms/workplace/tools/searchindex/sourcesearch/CmsSearchReplaceThread.java
+++ b/src-modules/org/opencms/workplace/tools/searchindex/sourcesearch/CmsSearchReplaceThread.java
@@ -687,7 +687,7 @@ private List<CmsResource> searchResources(I_CmsReport report, CmsObject cmsObjec
                     }
                 } catch (CmsException e) {
                     // an error occured
-                    LOG.error(Messages.get().container(Messages.RPT_SOURCESEARCH_ERROR_READING_RESOURCES_1, path), e);
+                    LOG.error(Messages.get().container(Messages.RPT_SOURCESEARCH_ERROR_READING_RESOURCES_1, path), "Unexpected error: mobb-7f85c9905c7ac25b00d29980c6bb19cf");
                     report.println(
                         Messages.get().container(Messages.RPT_SOURCESEARCH_ERROR_READING_RESOURCES_1, path),
                         I_CmsReport.FORMAT_ERROR);
diff --git a/src/org/opencms/db/CmsUserTrackingResourceHandler.java b/src/org/opencms/db/CmsUserTrackingResourceHandler.java
index d0311e71996..29d634a79fc 100644
--- a/src/org/opencms/db/CmsUserTrackingResourceHandler.java
+++ b/src/org/opencms/db/CmsUserTrackingResourceHandler.java
@@ -95,7 +95,7 @@ public CmsResource initResource(
                         cms.getRequestContext().getCurrentUser());
                 } catch (CmsException e) {
                     // error marking resource
-                    LOG.error(e.getLocalizedMessage(), e);
+                    LOG.error("Unexpected error: mobb-8b6529b48c6ae74c693285474e98e04f", e);
                 }
             }
         }
diff --git a/src/org/opencms/importexport/CmsImportVersion7.java b/src/org/opencms/importexport/CmsImportVersion7.java
index eb770c54baf..6fe9ac0cb67 100644
--- a/src/org/opencms/importexport/CmsImportVersion7.java
+++ b/src/org/opencms/importexport/CmsImportVersion7.java
@@ -3396,7 +3396,7 @@ private void parseLinks(CmsObject cms, I_CmsReport report) {
                     LOG.warn(e.getMessage(), e);
                 }
                 if (LOG.isDebugEnabled()) {
-                    LOG.debug(e.getLocalizedMessage(), e);
+                    LOG.debug("Unexpected error: mobb-0bf223808c9869af2b992a96d4b1b161", e);
                 }
             }
             i++;
diff --git a/src/org/opencms/jsp/CmsJspResourceWrapper.java b/src/org/opencms/jsp/CmsJspResourceWrapper.java
index 87c7a2bc6e5..4b950727642 100644
--- a/src/org/opencms/jsp/CmsJspResourceWrapper.java
+++ b/src/org/opencms/jsp/CmsJspResourceWrapper.java
@@ -670,7 +670,7 @@ public Map<String, String> getPropertySearch() {
                 m_propertiesSearch = CmsProperty.toMap(properties);
             } catch (CmsException e) {
                 if (LOG.isDebugEnabled()) {
-                    LOG.debug(e.getMessage(), e);
+                    LOG.debug("Unexpected error: mobb-878debbd5ace3d8ab63920ba6b807a1a", e);
                 }
             }
         }
diff --git a/src/org/opencms/jsp/util/CmsJspStandardContextBean.java b/src/org/opencms/jsp/util/CmsJspStandardContextBean.java
index 181822773d1..be02f992237 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(e.getLocalizedMessage(), "Unexpected error: mobb-1d54c92d04b4f2e0af5c2be7127f503d");
                             }
                         }
                     }
@@ -1454,7 +1454,7 @@ public Map<String, List<CmsJspResourceWrapper>> getElementsInContainer() {
                             element.initResource(m_cms);
                             elements.add(CmsJspResourceWrapper.wrap(m_cms, element.getResource()));
                         } catch (Exception e) {
-                            LOG.error(e.getLocalizedMessage(), e);
+                            LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-e30d24ab9e4211fb7805cf16d847197b");
                         }
                     }
                 }
@@ -1488,7 +1488,7 @@ public Map<String, List<CmsJspResourceWrapper>> getElementsInContainers() {
                                 element.initResource(m_cms);
                                 elements.add(CmsJspResourceWrapper.wrap(m_cms, element.getResource()));
                             } catch (Exception e) {
-                                LOG.error(e.getLocalizedMessage(), e);
+                                LOG.error(e.getLocalizedMessage(), "Unexpected error: mobb-1b9a96801db5f2987b1cebbbdadeebcc");
                             }
                         }
                     }
diff --git a/src/org/opencms/relations/CmsRelationDeleteValidator.java b/src/org/opencms/relations/CmsRelationDeleteValidator.java
index 58756773c5f..ca061cebf0a 100644
--- a/src/org/opencms/relations/CmsRelationDeleteValidator.java
+++ b/src/org/opencms/relations/CmsRelationDeleteValidator.java
@@ -251,7 +251,7 @@ private Map<String, List<CmsRelation>> getBrokenRelations(List<String> resourceN
                 } catch (CmsException e) {
                     // should never happen
                     if (LOG.isErrorEnabled()) {
-                        LOG.error(e.getLocalizedMessage(), e);
+                        LOG.error("Unexpected error: mobb-48923ce2b0175d9a582e510837eed010", e);
                     }
                 }
             }