PrestaBackup
This module allows you to create a complete backup of your site.
Main features:
- create backups of site files and database
- restore database backups
- few methods of backup
- and many other features
Features:
| Version | 1.1.0 |
| PrestaShop support | 1.5, 1.6, 1.7 |
| Language | English, Russian |
Sorry, I can't even suggest a possible reason of the problem, 505 is one of the rarest errors. Try to reupload the module and clear the cache, hopefully it'll help.