{"id":16647634,"date":"2023-04-12T09:16:09","date_gmt":"2023-04-12T09:16:09","guid":{"rendered":"https:\/\/wordpress.org\/support\/topic\/error-on-screen-after-update-billie-instanceof-paymentmethodi-failed\/"},"modified":"2023-04-12T09:29:45","modified_gmt":"2023-04-12T09:29:45","slug":"error-on-screen-after-update-billie-instanceof-paymentmethodi-failed","status":"publish","type":"topic","link":"https:\/\/wordpress.org\/support\/topic\/error-on-screen-after-update-billie-instanceof-paymentmethodi-failed\/","title":{"rendered":"Error on screen after update: $billie instanceof PaymentMethodI) failed"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">When I upgraded these 3 plugins  (name|old|new version) I get an error in wp-admin, and on the frontend. With the old versions, no problems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>versions<\/strong><br \/>WooCommerce | 7.4.0 | 7.5.1<br \/>WooCommerce Payments | 5.4.0 | 5.7.0<br \/>Mollie Payments for WooCommerce | 7.3.4 | 7.3.6<br \/>WooCommerce Subscriptions | 4.5.0 | 4.5.0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>error<\/strong><br \/>Warning: assert(): assert($billie instanceof PaymentMethodI) failed in \/home\/customer\/www\/sitename.nl\/public_html\/wp-content\/plugins\/<strong>mollie-payments-for-woocommerce<\/strong>\/src\/Gateway\/GatewayModule.php on line 168<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Warning: Cannot modify header information &#8211; headers already sent by (output started at \/home\/customer\/www\/sitename.nl\/public_html\/wp-content\/plugins\/<strong>mollie-payments-for-woocommerce<\/strong>\/src\/Gateway\/GatewayModule.php:168) in \/home\/customer\/www\/sitename.nl\/public_html\/wp-admin\/includes\/misc.php on line 1416<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Question<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What can I do to fix this?<br \/>I have already cleared the cache (SiteGround Cache), but it doesn&#8217;t work.<br \/><br \/>Hopefully someone knows, if more information is needed, please ask!<br \/>Thanks!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ren\u00e9<\/p>\n","protected":false},"template":"","class_list":["post-16647634","topic","type-topic","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/16647634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/16647634\/revisions"}],"predecessor-version":[{"id":16647680,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/16647634\/revisions\/16647680"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=16647634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}