WHM-v70.0.46 blank page

[hostingshades-nitin]

hi,
the ip manager was working fine with my old WHM version , but now it's showing black page.
i tried the method "Allow deprecated WHM accesshash authenticatio"
but it;s still show black page.
i followed to chnage remote access key
please let me know what is the solution.

deprecated [xml-api] The XML API serialization is deprecated. API call accountsummary (WHM API v0); Referer 'http://152.160.212.95:2086/cgi/addons/ipmanager/index.cgi' at whostmgr/bin/xml-api.pl line 3285.
whostmgr::bin::xml_api::runapp("accountsummary", HASH(0x49e78f8), HASH(0x226c5b8), 0, CODE(0x48cf178)) called at whostmgr/bin/xml-api.pl line 3091
whostmgr::bin::xml_api::script(CODE(0x48cf178), "./accountsummary") called at whostmgr/bin/xml-api.pl line 3042
, or } expected while parsing object/hash, at character offset 238 (before "(end of string)") at /usr/local/cpanel/whostmgr/docroot/cgi/addons/ipmanager/index.cgi line 316, line 1.
[2018-05-30 02:24:58 -0400] warn [whostmgrd] The subprocess (/usr/local/cpanel/whostmgr/docroot/cgi/addons/ipmanager/index.cgi) exited with an error: The subprocess reported error number 255 when it ended. at /usr/local/cpanel/Cpanel/Server/Handlers/SubProcess.pm line 251, <$socket> line 6.
Cpanel::Server::Handlers::SubProcess::_report_subprocess_errors(Cpanel::Server::Handlers::SubProcess=HASH(0x3159d00)) called at /usr/local/cpanel/Cpanel/Server/Handlers/SubProcess.pm line 109
Cpanel::Server::Handlers::SubProcess::handler(Cpanel::Server::Handlers::SubProcess=HASH(0x3159d00), CPANEL_HIDDEN, CPANEL_HIDDEN..., CPANEL_HIDDEN, 29720, CPANEL_HIDDEN, IO::Handle=GLOB(0x3159e08), CPANEL_HIDDEN, ...) called at cpsrvd.pl line 6650
cpanel::cpsrvd::cgiHandler(CPANEL_HIDDEN, CPANEL_HIDDEN, CPANEL_HIDDEN, CPANEL_HIDDEN) called at cpsrvd.pl line 6106
cpanel::cpsrvd::dodoc_whostmgrd() called at cpsrvd.pl line 1679
cpanel::cpsrvd::dodoc(HASH(0x1338ea8)) called at cpsrvd.pl line 1452
cpanel::cpsrvd::handle_one_connection(4) called at cpsrvd.pl line 893
cpanel::cpsrvd::script() called at cpsrvd.pl line 324
warn [whostmgrd] The subprocess (/usr/local/cpanel/whostmgr/docroot/cgi/addons/ipmanager/index.cgi) exited with an error: The subprocess reported error number 255 when it ended.
[2018-05-30 02:25:15 -0400] info [cpsrvd] Restarting cpsrvd daemon process 17362 via /usr/local/cpanel/cpsrvd

[bellwood]

, or } expected while parsing object/hash, at character offset 238 (before "(end of string)") at /usr/local/cpanel/whostmgr/docroot/cgi/addons/ipmanager/index.cgi line 316, line 1.

...would seemingly indicate an issue with the access hash being read in.

Does the access hash contain anything other than alpha numeric characters?

[vktechnology]

WHM > Tweak Settings > Security and active "Allow deprecated WHM accesshash authentication"

[jdpierce21]

I was having this same issue. Changing "Allow deprecated WHM accesshash authentication" to On resolved my issue. Thank you!