Solved Malfunction of the keys for inserting attachments and images

I don't know if this can be a causary extension to the problem

No, please disable or change nothing in a plugin if you not know the affiliation. If you disable a wrong system plugin it's possible, that you can't login in the backend anymore.

I installed the plugin but nothing happens.... could you give me some advice?

If you want you can create a admin account for me and I will try to disable the script with this plugin. You can send the acces data to rich@*kunena.org (address without star).

Hi Rich, I thank you for your availability, unfortunately I can not give you access from administrator to the site since there are sensitive data of registered users (this is not a lack of confidence in your comparisons, but respect for the confidence that users Registered they gave me). I'll try to figure out what to disable with the hope of not making trouble. Thanks again for your valuable support, and if you have more suggestions are welcome.

Thanks rich, forgive me but I'm not experienced, I installed the plugin but nothing happens.... could you give me some advice? Should I do anything else? Thanks again especially for the patience!

You need to enter the name of this script in this plugin. But if you not able to find the right plugin after the installation, unfortunately I can't help more.
Have you no member in your team with more know how about Joomla?

Hi Rich, I thank you for the great hand you are giving me, unfortunately this is not a job, but only a community created for a group of friends with whom I play, so no one but me has experience in managing websites, now maybe I found a person who I know very competent, let's see if he gives me a hand to solve. However you have been precious thank you very much!