I have noticed that the blocks created with Custom Block Manager sometimes cause cache related errors. Here the esittely
is a simple text block. A few times a day I get these errors:
[Thu May 11 15:24:13 2017] [error] [client 192.xxx] PHP Warning: include(cache/fc-pluginSettings-47-esittely.php): failed to open stream: No such file or directory in lib/pkp/classes/cache/FileCache.inc.php on line 46, referer: https://site.com/journalname/management/settings/access
[Thu May 11 15:24:13 2017] [error] [client 192.xxx] PHP Warning: include(): Failed opening 'cache/fc-pluginSettings-47-esittely.php' for inclusion (include_path='.:classes:pages:lib/pkp:lib/pkp/classes:lib/pkp/pages:lib/pkp/lib/adodb:lib/pkp/lib/phputf8:lib/pkp/lib/pqp/classes:lib/pkp/lib/smarty:.:/usr/share/pear:/usr/share/php') in lib/pkp/classes/cache/FileCache.inc.php on line 46, referer: https://site.com/journalname/management/settings/access