Sort issue with 2.1.0

Hi there. I have an issue that i just haven’t been able to troubleshoot.

With my galleries I upped the number of images that they can contain to 5000 but when I try and adjust the sort order I always get the following error message:

Warning: parse_str() [function.parse-str]: Input variables exceeded 1000. To increase the limit change max_input_vars in php.ini. in /home/content/32/10637532/html/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/ngglegacy/admin/manage-sort.php on line 18

I had this issue before and the problem was solved by deactivating the plugin then reactivating it but now nothing seems to work at all and I cannot adjust the gallery for any image that is ouside the default 1000 image limit.

I have plans on adding lots more images to my various galleries and I do not want this issue to create hours more work than it already is. So I am hoping that someone here can help fix my current issue and have suggestions how this can be prevented with every single update of the plugin.

https://wordpress.org/plugins/nextgen-gallery/