Import freeze

Hello everyone,

I try to import the file of a new website made on wordpress with Local By FlyWheel.
The export locally went well.
The host is O2Switch.

I used the Plugin All-In-One-Migration
My problem : the import on the new wordpress hosted online is freezing on 100% since 1 hour.
The file is only 236Mo. There is very few images.

Did that happen to somebody ?

My host tells me that SQL version (8.0.16) of LocalByFlyWheel is too recent and has to be downgraded to less than 8 ! I have no idea how to do that.

Thank you for your help.