Error on save Module

When i try save Module i receive this error:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@estudiomx.com.br to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.



My Joomla
Jomla:

Versão do PHP 5.3.29
Servidor Web Apache
Interface PHP com servidor Web cgi-fcgi
Versão do Joomla Joomla! 3.5.1 Stable [ Unicorn ] 05-April-2016 22:45 GMT

Hello Maximilano and thank you for posting.

I would need a few more details to be able to debug this problem.
Can you please describe exactly when this happens? Does it happen when you click "Add to Favorites"?
Does it happen for some specific component item?
Could I see a URL where it happens?

Thanks again.

In /administrator/index.php?option=com_advancedmodules&view=module&layout=edit&id=217
When a save the modulo to try "enable" and "set position", after clic "SAVE" i receive this message.

I add all print screens for this module config and page error

https://drive.google.com/file/d/0Byxf4ytWQhhmd0ZhUWpGaHNzaWc/view?usp=sharing

Thank you Maximiliano for all the screenshots.
I think I have seen this error, but only years ago, so I'm not sure it is caused by the same reason.

In the past, this was related with the Apache module mod_security being enabled.
Can you ask your host to check this, please?
Please note that there is nothing in the module php code that can control this.

Thanks again.

Yes, you are right.
When a try save this module, in mod_security i found this in exactly time a try save:

Rule: 300015
#Generic SQL sigs
SecRule ARGS "((alter|create|drop)[ [:space:]]+(column|database|procedure|table)|delete[ [:space:]]+from|update.+set.+" "id:300015,t:lowercase,rev:1,severity:2,msg:'Generic SQL injection protection'"

Error:
Request: POST /clientes/arbipediav4/administrator/index.php?option=com_advancedmodules&layout=edit&id=217
Action Description: Access denied with code 500 (phase 2).
Justification: Pattern match "((alter|create|drop)[ [:space:]]+(column|database|procedure|table)|delete[ [:space:]]+from|update.+set.+" at ARGS:jform[params][del_button_text].


Can you do something?
Thanks
Max

Hi again Maximiliano.
I noticed that you use Advanced Modules as your module manager.
Have you tried without this custom component? Have you tried to ask them about this error?

Thanks again.