When I upgraded these 3 plugins (name|old|new version) I get an error in wp-admin, and on the frontend. With the old versions, no problems.
versions
WooCommerce | 7.4.0 | 7.5.1
WooCommerce Payments | 5.4.0 | 5.7.0
Mollie Payments for WooCommerce | 7.3.4 | 7.3.6
WooCommerce Subscriptions | 4.5.0 | 4.5.0
error
Warning: assert(): assert($billie instanceof PaymentMethodI) failed in /home/customer/www/sitename.nl/public_html/wp-content/plugins/mollie-payments-for-woocommerce/src/Gateway/GatewayModule.php on line 168
Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/sitename.nl/public_html/wp-content/plugins/mollie-payments-for-woocommerce/src/Gateway/GatewayModule.php:168) in /home/customer/www/sitename.nl/public_html/wp-admin/includes/misc.php on line 1416
Question
What can I do to fix this?
I have already cleared the cache (SiteGround Cache), but it doesn’t work.
Hopefully someone knows, if more information is needed, please ask!
Thanks!
René
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