Fatal error: Uncaught exception 'Exception' with message 'The line number 581 from the file /homepages/14/d533669269/htdocs/jeiletters/C:/AppServ/files/usageStats/processing/usage_events_20210722.log is not a valid log entry and the file was rejected.' in /homepages/14/d533669269/htdocs/jeiletters/plugins/generic/usageStats/UsageStatsLoader.inc.php:156 Stack trace: #0 /homepages/14/d533669269/htdocs/jeiletters/lib/pkp/classes/task/FileLoader.inc.php(133): UsageStatsLoader->processFile('/homepages/14/d...', NULL) #1 /homepages/14/d533669269/htdocs/jeiletters/plugins/generic/acron/AcronPlugin.inc.php(160): FileLoader->execute() #2 [internal function]: AcronPlugin->callbackLoadHandler('LoadHandler', Array) #3 /homepages/14/d533669269/htdocs/jeiletters/lib/pkp/classes/plugins/HookRegistry.inc.php(89): call_user_func(Array, 'LoadHandler', Array) #4 /homepages/14/d533669269/htdocs/jeiletters/lib/pkp/classes/core/PKPPageRouter.inc.php(178): HookRegistry->call('LoadHandler', Array) #5 /homepages/14/d533669269/htdocs/jeiletters/li in /homepages/14/d533669269/htdocs/jeiletters/plugins/generic/usageStats/UsageStatsLoader.inc.php on line 156