WPDM – Newsletters: Cron Error (Cannot access offset of type string)

Hi, recently the WPDM – Newsletters addon stopped working, we get an error message when running the cronjob. The plugin itself is up to version 3.3.1 and WPDM Free itself is up to version 3.3.05. We have not made any changes to the site!

Enclosed is the error log:

[13-Jan-2025 11:14:02 UTC] PHP Fatal error:  Uncaught TypeError: Cannot access offset of type string on string in /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php:183


Stack trace:

#0 /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php(65): CAMPAIGN\UTIL\Mailer->sendMail()

#1 /var/www/html/wp-content/plugins/wpdm-newsletter/wpdm-newsletter.php(113): CAMPAIGN\UTIL\Mailer->cronHandler()

#2 /var/www/html/wp-includes/class-wp-hook.php(324): CAMPAIGN\EdenCampaign->cronHandle()

#3 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()

#4 /var/www/html/wp-includes/plugin.php(565): WP_Hook->do_action()

#5 /var/www/html/wp-includes/class-wp.php(830): do_action_ref_array()

#6 /var/www/html/wp-includes/functions.php(1336): WP->main()

#7 /var/www/html/wp-blog-header.php(16): wp()

#8 /var/www/html/index.php(17): require('...')



}

  thrown in /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php on line 183

Thanks and regards Marko

Hi Tahasin,

The download manager plugin version is: 3.3.05

Hello, yes, that’s ok

Hi,
The Crontab example.com/?cron_handle=1

Unfortunately still produces the same error.

[14-Jan-2025 10:24:02 UTC] PHP Fatal error:  Uncaught TypeError: Cannot access offset of type string on string in /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php:183

Stack trace:
#0 /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php(65): CAMPAIGN\UTIL\Mailer->sendMail()
#1 /var/www/html/wp-content/plugins/wpdm-newsletter/wpdm-newsletter.php(113): CAMPAIGN\UTIL\Mailer->cronHandler()
#2 /var/www/html/wp-includes/class-wp-hook.php(324): CAMPAIGN\EdenCampaign->cronHandle()
#3 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#4 /var/www/html/wp-includes/plugin.php(565): WP_Hook->do_action()
#5 /var/www/html/wp-includes/class-wp.php(830): do_action_ref_array()
#6 /var/www/html/wp-includes/functions.php(1336): WP->main()
#7 /var/www/html/wp-blog-header.php(16): wp()
#8 /var/www/html/index.php(17): require('...')

}
  thrown in /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php on line 183
2a01:4f8:c01f:c0:1002::11 - - [14/Jan/2025:10:24:02 +0000] "GET /?cron_handle=1 HTTP/1.0" 500 3230 "-" "Cronicle/1.0"

The error is caused by your script!

PHP Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /var/www/html/wp-content/plugins/wpdm-newsletter/campaign/util/mailer.php:183

I am the server admin! And the error comes from your script, both as crontab or when I call the cron URL. As the server admin, I can’t fix anything if the error comes from wpdm-newsletter.

Where can I download the previous version of WPDM – Newsletters?

ok then I’ll import the one from the backup. Thank you!

Can be closed, we have now fixed the problem ourselves. Thank you very much!