Not sure what "Loop and Dynamic pointer" is supposed to be.

My guess is that the loss of the connection to your database is due to my.cnf settings with regard to the number of max connections and the keep-alive time of connections. Especially, if you are on a (cheap) shared server or "cloud server" hosting plan the coniguration of max connections is quite low and maybe most MySQL settings are kept on the default values even if they make not much sense. And you probably can't even make the necessary changes in my.cnf to stop the connection issues.

My advice: get in contact with the support of your webhoster to help you out optimizing the my.cnf settings (general advice is difficult because it depends also on things like memory available). And if you are not on a VPS or similar hosting plan you probably need to switch (and pay more...) to be able to make the necessary improvements.

1 - Check the read/write permissions on this folder

2 - Check the .htaccess rules on access to this folder

You can try these Q&A's:

http://elgghacks.com/questions/view/783/custom-html-js-and-css

http://elgghacks.com/questions/view/970/external-js-files

https://drive.google.com/file/d/14e94OOUmPiRx7zX48flN28ozXmxU4iep/view?usp=drivesdk

This is the link of the error .