Twenty Twenty One child theme
My site, that is very simple, that has these characteristics above, is giving me some problems when Im using the newsletter plugin to send a newsletter. When I do a mailing test, on the delivery diagnostic of the newsletter plugin, I got this message below:
“Non-static method BasicSEO::init_menu() should not be called statically”
How can I fix this error? can anybody help me?
Thank you a lot in advance
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