Sudden error when using it with a social login plugin
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Hi there,
The plugin was working fine so far.
All I did yesterday, was to clean expired transients. No updates or anything else.Today 3 people have reported issues that they can’t login with the social login plugin we use and one of them sent a screenshot where it says ‘Warning: preg_match(): Unknown modifier ‘4’ in …/plugins/user-login-history/admin/class-user-login-history-user-tracker.php on line 142′ and ‘Warning: preg_match(): Unknown modifier ‘c’ in …/plugins/user-login-history/admin/class-user-login-history-user-tracker.php on line 142′. And then some other warning ‘Cannot modify header information – header already sent by (output started at …/plugins/user-login-history/admin/class-user-login-history-user-tracker.php:142) in …/wp-includes/pluggable.php on line 1210’.
Do you know why this would happen all of the sudden?
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