math.utm.edu says:
/webwork2/instructorXMLHandler: timeout
[Wed Aug 02 18:44:45.606117 2017] [perl:warn] [pid 13719] [client 10.10.5.9:57646] [/webwork2/instructorXMLHandler] Use of uninitialized value in join or string at /opt/webwork/webwork2/lib/WebworkClient.pm line 292., referer: http://math.utm.edu/webwork2/MATH140_FALL_17_CALDWELL/instructor/setmaker/?
WebworkClient: issue command WebworkXMLRPC.searchLib library_subjects Algebra version_last_attempt_time command getAllDBchapters version_time_limit user caldwell envir HASH(0x7f4f7025b4f0) set_id time_interval probList time_limit_cap student_id path id source processAnswers 1 hide_score last_name maxdepth 0 library_chapters course_password library_name Library library_status place assigned_users library_textbook new_password pgCode noprepostambles attempts_per_version due_date hide_work library_sections userID caldwell library_textsection enable_reduced_scoring 0 var answer_date value displayMode restricted_login_proctor first_name sendViaJSON restrict_ip section set_header answer_form_submitted 1 version_creation_time relax_restrict_ip problems_per_page hide_score_by_problem library_keywords subcommand set_props email_address showHints 0 permission 0 selfassign problem_state HASH(0x7f4f71d3c910) library_textchapter fileName set set0 hardcopy_header courseID MATH140_FALL_17_CALDWELL new_set_name new set showSolutions 0 assignment_type status mode images versions_per_interval session_key XsJzAq3S77wcLrSrTOmbzfaH1wSN29ph userpassword visible 0 users overrides library_levels comment recitation problem_randorder open_date problemSeed 0There were a lot of errors
Errors:
500 Can't connect to math.utm.edu:80 (Connection timed out) at /opt/webwork/webwork2/lib/WebworkClient.pm line 293.
End Errors
xmlrpcCall to searchLib returned no result for
[Wed Aug 02 18:46:52.910072 2017] [perl:error] [pid 13719] [client 10.10.5.9:57646] [/webwork2/instructorXMLHandler] xmlrpcCall to searchLib returned no result for \n * in WeBWorK::ContentGenerator::instructorXMLHandler::content called at line 232 of /opt/webwork/webwork2/lib/WeBWorK/ContentGenerator.pm\n * in WeBWorK::ContentGenerator::go called at line 384 of /opt/webwork/webwork2/lib/WeBWorK.pm, referer: http://math.utm.edu/webwork2/MATH140_FALL_17_CALDWELL/instructor/setmaker/?key=XsJzAq3S77wcLrSrTOmbzfaH1wSN29ph&user=caldwell&effectiveUser=caldwell
I carefully scanned the conf files, we updated the courses, restarted the server, ...
Any clues what to try next?