Hi Josselin.
I assume you mean an EX1 !
What version did you upgrade from?
Most people on here jumped from around v1.05 up to v 1.20 or higher and then got error messages.
As far as I’m aware most/all of them downgraded back to 1.05, and then incrementally went up to higher versions.
If you need to go down to a low version post an email address and I can invite you onto my shared Dropbox folder. Each version has got install instrucions enclosed, and the install program changed slightly at v1.20
Also, I’ve only got the Windows versions.
Regards,
Julian.