How to fix "setupUpdateDatabase: ERROR A downgrade attempt has been detected. Downgrade is unsupported."

Hi all,

I got some PHP 5.6.24 problems with my Wordpress installation. Thus, I decided to upgrade my PHP version to 7.0.10 which worked fine by the way, I guess. I removed (purged) all php5 settings and php7 was active by default. After that, I have tried to login in the admin panel and got the message that mcrypt is not working. After googling, I found out that php7 ist not supported to host i-MSCP. Thus, I rolled everything back. After that, the backend and frontend still did not work, thus I decided to run the installer again.

The installer breaks at

setupUpdateDatabase: ERROR A downgrade attempt has been detected. Downgrade is unsupported.

But I didn't touch any mysql things, I didnot down- or upgrade mysql, it's still on 5.7.

How can I fix this issue?

Thanks,
Sven

Hi Nuxwin,

I will try PHP7 again, but I had troubles with the mcrypt module. I have downloaded the 1.3.0 version and still got that error. Before that, I had 1.3.0 installed, too.

Is there a newer version availbe? Ninos fixed my install last time, maybe he used a more up to date version?

Thanks,
Sven

Hi Nuxwin,

the problem is that once I started the installer, it automatically downloads and configures the php5 environment, even it is not present but php7 is. Is there a switch to turn that off?

Do you have any idea how to get ridd of the downgrade message?

Thanks,
Sven

Hi,

I am using Debian 8.5 and the following repositories for PHP 7 and PHP 5.6:

deb http://packages.dotdeb.org jessie all
deb-src http://packages.dotdeb.org jessie all

If you like you can have a look on my server. The public key is still available, but not active. I will post the password in a private message to you.

Thanks,
Sven

Allright, it might be related to the installation done by Ninos that he used a more up to date version than I downloaded today.