Database backup crashes

[mallrat]

Hi there

Two database problems

Prestashop 1.6.1.15.

1. The 'DB Backup' under 'Advanced Parameters' crashes after a few seconds and I get a white screen. Previously this function was working and the last successful database backup was 2975.62 kb. Now after each failed attempt to backup the database size is always around 799 or 800 kb.

2. I can successfully export the database via phpmyadmin. When I try to check the integrity of the database on localhost by importing it into a new blank database I get the following error ' MySQL: Table 'ps_access' already exists '.

So right now I cannot back up and check the database using either method.

Any help would be appreciated.