Q-translate-x stopped working

Q-translate plug in stopped working. It didn’t let nor me nor the readers of my website see the DEFAULT language but only the secondary one.
I need this issue to be resolved asap.

I had to reactivate mqtranslate even if it’s an expired plug in but that won’t let me use the text editor properly cause it says: The mqTranslate Editor has disabled itself because it hasn’t been tested with your WordPress version yet. This is done to prevent WordPress from malfunctioning. To remove this message permanently, please update mqTranslate to the corresponding version.

I tried to look for the support board of qtranslate-x but the plug in is no longer on wordpress to be downloaded.

Someone has any idea on what’s happening? We didn’t change anything on our website and it was working fine a few hours ago.