Plugin Conflict with Events Cal

Hi @spoleweski

I installed and activated Modern Events Calendar Lite version 4.7.7 and activated Wordfence version 7.4.0 and I cannot replicate this.

The white screen indicates a fatal PHP error.

If you are not sure what to do your hosting provider should be able to help with the following instructions.

If PHP error logging is enabled on the server then there may be one or more error log files. Please check with your hosting provider that PHP error logging is enabled. If it isn’t, then the PHP directive log_errors will have to be enabled so that you can then create a log of any PHP errors.

Recreate the issue to generate fresh PHP error log files.

If there are error log files one may be in the root directory of your WordPress installation. This directory is typically named something like public_html or htdocs.

There may be another error log in the wp-admin directory.

The error log files will typically have a name like error_log or something similar.

You can either manually download them from your hosting account or you can use the download links in the Log Files section on the Wordfence Tools >> Diagnostics page. Obtaining the error logs from the Wordfence Tools page doesn’t always work on some hosting environments so you will have to obtain them from your hosting account.

Edit the log files so that they contain the last 24 hours of logs and send them to wftest [@] wordfence [dot] com. Make sure to put @spoleweski in the subject field of the email.

Also, I would like to have a look at your Wordfence diagnostics report. Please go to the top of the “Diagnostics” tab on the Wordfence “Tools” page. There will be a “SEND REPORT BY EMAIL” button to send the diagnostics report. Enter wftest [@] wordfence [dot] com as the email and @spoleweski as the forum username please.

Once you have emailed me the diagnostics report can you reply here to let me know that it has been sent. This is important in the unlikely event that your installation of WordPress is having an issue with sending mail.

Thank you.

Many thanks for your help wfphil!

I have sent both the error log and the wordfence diagnostics to you now.

Regards,
Stephen

Hi @spoleweski

Thank you for the report and error log.

I see fatal memory exhaustion errors for the Modern Events Calendar Lite plugin and fatal memory exhaustion errors for other plugins too:

[31-Oct-2019 09:27:48 UTC] PHP Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 16384 bytes) in [redacted]/public_html/dfo/wp-content/plugins/modern-events-calendar-lite/app/features/speakers.php

Can you add this line of code to your WordPress wp-config.php configuration file that is located in the root directory of your WordPress installation:

define( 'WP_MEMORY_LIMIT', '64M' );

Make sure it is added above the line that says:

/* That's all, stop editing! Happy publishing. */

Background information here:

https://www.ads-software.com/support/article/editing-wp-config-php/#increasing-memory-allocated-to-php

Does that now fix it?

I also saw another fatal PHP error for the Bulletproof Security plugin that is not memory related. You should ask them to look at that and help you resolve it.

[31-Oct-2019 08:08:58 UTC] PHP Fatal error: Uncaught Error: Call to undefined function bps_smonitor_mscan_email() in [redacted]/public_html/dfo/wp-content/plugins/bulletproof-security/includes/mscan-ajax-functions.php:1701
Stack trace:
#0 [redacted]/public_html/dfo/wp-content/plugins/bulletproof-security/includes/mscan-ajax-functions.php(37): bpsPro_mscan_file_scan(‘300’)
#1 [redacted]/public_html/dfo/wp-includes/class-wp-hook.php(286): bpsPro_mscan_scan_processing(”)
#2 [redacted]/public_html/dfo/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array)
#3 [redacted]/public_html/dfo/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#4 [redacted]/public_html/dfo/wp-admin/admin-ajax.php(173): do_action(‘wp_ajax_bps_msc…’)
#5 {main}