Gallery PhotoBlocks

Are you using Hostgator? Simply contact their support via phone or live chat to report mod security blockage. Send them the faulty link to a thumbnail. If you are not on Hostgator but getting 403 errors then try adding these lines to your .htaccess file in the WordPress installation folder. Revert the modification if it has no effect and contact the hosting’s support. SecFilterEngine Off SecFilterScanPOST Off

• Are you on Bluehost’s Optimized Hosting for WordPress? Make sure you turn off Varnish caching. It empties query strings.
• Open your .htaccess file and ensure you do not have this line in it:

php_value mbstring.func_overload 2

• Or something like this:

RewriteRule wp-content/plugins/(.*.php)$ – [R=404,L]

• Make sure you have GD library. A possible error is “GD Library Error: imagecreatetruecolor does not exist – please contact your webhost and ask them to install the GD library”.
• iThemes Security (formerly Better WP Security) settings > System Tweaks > Configure Settings > Disable PHP in Plugins – Off. Also, System Tweaks > Filter Suspicious Query Strings – Disable.
• Sucuri Security plugin > 1-Click Hardening – Do not use it.
• WP All in ONE Security: WP Security > Firewall > Additional Firewall Rules (tabs at top of page) > Bad Query Strings – Untick. AND/OR WP Security > Firewall > 6G Blacklist Firewall Rules (tabs at top of page) > Enable 6G Firewall Protection – Untick.

Check the console of the browser and look if you see errors, if case please open a support ticket in our forum.

Currently galleries made with Envira, FooGallery, Instagram, NextGen, JetPack, Modula, etc cannot be imported.

Please report security bugs found in the source code of the Gallery PhotoBlocks plugin through the Patchstack Vulnerability Disclosure Program . The Patchstack team will assist you with verification, CVE assignment, and notify the developers of this plugin.”