[Plugin: WP-Table Reloaded] Can't Add Rows

Hi,

thanks for your report, and sorry for the trouble that you are experiencing.

From your description, I assume that this is caused by the known “Suhosin” problem. Suhosin is a security extension on the server than can (if configured too strict) break the saving of tables and options (due to which those things you mention don’t work). Please take a look at these forums threads for more hints:
https://www.ads-software.com/support/topic/plugin-wp-table-reloaded-table-errors
https://www.ads-software.com/support/topic/plugin-wp-table-reloaded-table-not-showing-blankpage
https://www.ads-software.com/support/topic/plugin-wp-table-reloaded-plugin-wp-table-reloaded
https://www.ads-software.com/support/topic/plugin-wp-table-reloaded-row-limitations

Another reason might be that the PHP Memory Limit is reached, so that the saving process simply stops. Can you try to increase the limit by following https://codex.www.ads-software.com/Editing_wp-config.php#Increasing_memory_allocated_to_PHP ?

Regards,
Tobias