Not too sure how I can help you since it is most likely a conflict on your end? Try deactivating all plugin and try.
i have only 1 plugin, thats wp download manager,the error has been occurring from last 2 days, all the links are working, i can delete the files but unbale to add any new files, i think something has happened from the recent wordpress update.
Unlikely, I am using the latest one 4.2.3 and it works fine for me http://imgur.com/1Veqt0p
i have updated to 4.2.3 but the same problem is there, when i add a file and press on add file button this page opens (/wp-admin/admin.php?page=wp-downloadmanager/download-add.php) http://i.imgur.com/46kw10Y.png
http://i.imgur.com/IN4nA03.png
I have no idea why is it causing that, probably you have to try another plugin since I can’t reproduce the problem on my end.
I will leave this unresolved, maybe someone else can help or have the same problem will provide more insights.
the same error has occurred on my other blogs, but there i was not able to update my old posts, i think something has happened to my database,i am not going to any other plugin, your wp-downloadmanager is the best,i will wait for few days.
I ran into something with this today, turns out a mod_security rule was blocking it. Specifically, rules 340464 and 340465. I disabled these rules and the plugin is functioning again.
<LocationMatch .*>
SecRuleRemoveById 340464
SecRuleRemoveById 340465
</LocationMatch>
Should disable the rules, but where you put this code is left up to you. For cPanel wiuth ModSecurity tools plugin, you can edit the rules list from ModSecurity Tools -> Rules List -> Edit rules.
i can’t find the modsecurity in the godaddy’s cpanel, can’t i add this code in my htaccess file with some modification.
after installing wordpress 4.2.3 i was able to add files again, this problem is resolved
