Any update on this? I'm having identical issues. See here.
https://webwork.maa.org/moodle/mod/forum/discuss.php?d=8133
I also went around changing permission on various things to www-data but it didn't fix things. I spent some time looking at some of the error logs from the web server and javscript interpreter in case this is of any use.
The Library Browser errors are accompanied by the following in the Chrome developer tools window:
setmaker.905502e7.min.js:1 POST https://<FQDN>/webwork2/instructorXMLHandler
403 (Forbidden)
c @ setmaker.905502e7.min.js:1
(anonymous) @ setmaker.905502e7.min.js:1
The WebWork apache webserver reports:
There were a lot of errors
Errors:
404 Not Found at /opt/webwork/webwork2/lib/WebworkClient.pm line 301.
End Errors
xmlrpcCall to searchLib returned no result for
[Mon Sep 05 16:19:42.936447 2022] [perl:error] [pid 9144] [client 192.168.122.1:37354] [5cb15bc7-d42b-5be7-bb5c-ee249e546918::757964b3-2d60-11ed-9ace-b8bb857c4466] [/webwork2/instructorXMLHandler] {"Time":"Mon Sep 05 16:19:42 2022","Warnings":[],"URI":"/webwork2/instructorXMLHandler","Error record identifier":"5cb15bc7-d42b-5be7-bb5c-ee249e546918::757964b3-2d60-11ed-9ace-b8bb857c4466","HTTP Headers":{"Accept-Encoding":"gzip, deflate, br","Origin":"https://<FQDN>","X-Forwarded-For":"10.32.227.72","X-Forwarded-Server":"<FQDN>","Sec-Fetch-Dest":"empty","Sec-Fetch-Mode":"same-origin","Host":"192.168.122.22","sec-ch-ua":"Google Chrome;v=105, Not)A;Brand;v=8, Chromium;v=105","Sec-Fetch-Site":"same-origin","Content-Length":"293","sec-ch-ua-platform":"\\"Linux\\"","X-Forwarded-Host":"<FQDN>","Accept":"*/*","Content-Type":"application/x-www-form-urlencoded;charset=UTF-8","Referer":"https://FQDN/webwork2/Fall2022-Math205-1/instructor/setmaker/?key=3XSHMMQsvCChyvSeXVQ0Ras4YiucxzbQ&effectiveUser=USER&user=USER","User-Agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36","Accept-Language":"en-US,en;q=0.9","Cookie":"_fbp=fb.1.1645625397252.1636027296; _ga_Y29PC3P5S9=GS1.1.1651265284.2.1.1651265293.51; _ga=GA1.2.838676820.1645625396; _gcl_au=1.1.1748855266.1661537627; twk_uuid_5b7b217ff31d0f771d83fb0c=%7B%22uuid%22%3A%221.3dXSeTnakYEtamDC6UVOg13iYhEBGqAuXCqVttQPY2ebEbextlAwAXbOgtBpmvcysSj6L9H7RDrbFLFfgMkZXBKxgDSdXSWqtiAnCEKHg4nnSXeujcsIEW8yTsR9mWrd61HlkGXEli6%22%2C%22version%22%3A3%2C%22domain%22%3A%22knox.edu%22%2C%22ts%22%3A1661886998895%7D; _gid=GA1.2.1660547598.1662406748","sec-ch-ua-mobile":"?0","Connection":"Keep-Alive"},"Method":"POST"} xmlrpcCall to searchLib returned no result for \n * in WeBWorK::ContentGenerator::instructorXMLHandler::content called at line 218 of /opt/webwork/webwork2/lib/WeBWorK/ContentGenerator.pm\n * in WeBWorK::ContentGenerator::go called at line 371 of /opt/webwork/webwork2/lib/WeBWorK.pm, referer: https://<FQDN>/webwork2/Fall2022-Math205-1/instructor/setmaker/?key=3XSHMMQsvCChyvSeXVQ0Ras4YiucxzbQ&effectiveUser=USER&user=USER
While rendering in the homework sets editor, the webwork apache webserver reports (one error for each problem on the set):
There were a lot of errors
Errors:
404 Not Found at /opt/webwork/webwork2/lib/WebworkClient.pm line 301.
End Errors
xmlrpcCall to renderProblem returned no result for Library/UMN/calculusStewartET/s_7_1_prob06.pg
There were a lot of errors
Errors:
404 Not Found at /opt/webwork/webwork2/lib/WebworkClient.pm line 301.
End Errors
xmlrpcCall to renderProblem returned no result for Library/UMN/calculusStewartCCC/s_5_5_67.pg
There were a lot of errors
Errors:
404 Not Found at /opt/webwork/webwork2/lib/WebworkClient.pm line 301.
End Errors
xmlrpcCall to renderProblem returned no result for Library/UMN/calculusTaalman/t_5_1_prob02.pg
There were a lot of errors
Errors:
404 Not Found at /opt/webwork/webwork2/lib/WebworkClient.pm line 301.
End Errors
xmlrpcCall to renderProblem returned no result for Library/NAU/setCalcI/erfSubstitution.pg