Since upgrading to WPDataTables 2.0, I am unable to update any of the settings of an existing table - see screenshot attached.  Happens when I try to update anything - display setting, tool settings, etc.

Hi, Bogdan,

1.  I'm receiving the error just by trying to apply disabling Table Tools - not from any SQL - does this still indicate a server issue?

2. Added to my .htacess - doesn't seem to make any difference - do I need to do anything special to activate the .htacess changes?

3.  My .htacess file has what you included but also some additional commands (from woocommerce?)

# BEGIN WordPress
AddHandler application/x-httpd-php70s .php
<IfModule mod_expires.c>
	ExpiresActive On
	ExpiresByType image/jpg "access plus 1 year"
	ExpiresByType image/jpeg "access plus 1 year"
	ExpiresByType image/gif "access plus 1 year"
	ExpiresByType image/png "access plus 1 year"
	ExpiresByType text/css "access plus 1 month"
	ExpiresByType application/pdf "access plus 1 month"
	ExpiresByType text/javascript "access plus 1 month"
	ExpiresByType text/html "access plus 2 hours"
	ExpiresByType image/x-icon "access plus 1 year"
	ExpiresDefault "access plus 6 hours"
</IfModule>
Options -Indexes
Header set X-Endurance-Cache-Level "2"
<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteBase /
	RewriteRule ^/wp-content/endurance-page-cache/ - [L]
	RewriteCond %{REQUEST_METHOD} !POST
	RewriteCond %{QUERY_STRING} !.*=.*
	RewriteCond %{HTTP_COOKIE} !(wordpress_test_cookie|comment_author|wp\-postpass|wordpress_logged_in|wptouch_switch_toggle|wp_woocommerce_session_) [NC]
	RewriteCond %{DOCUMENT_ROOT}/wp-content/endurance-page-cache/$1/_index.html -f
	RewriteRule ^(.*)$ /wp-content/endurance-page-cache/$1/_index.html [L]
</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Does this appear OK?

Thanks,
Mike