I just upgraded my php version from 5.6 to 7.3, and i upgraded my wordpress version from 4.4 to 5.2.3, and also i upgraded plugins. After doing this, my custom fields disappeared and I have this error:
Warning: Invalid argument supplied for foreach() in …\wp-content\plugins\custom-field-suite\includes\api.php on line 535
Both in wp-admin (in page edit view and custom fields view) and in from the site.
What happened? How can I solve it?
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