The backup version 20.0.6.486 is newer than the PBX version 20.0.5.551. You can restore this backup only with PBX version 20.0.6.486 or newer.

[MAGTEL SYSTEMS]

The backup version 20.0.6.486 is newer than the PBX version 20.0.5.551. You can restore this backup only with PBX version 20.0.6.486 or newer. how to solve this

 

[bitn2]

Upgrade before restore... During install or after that.

 

[NikosK_3CX]

As per the support ticket you have opened, proceed with a fresh installation, upgrade the PBX to build 486
and then manually upload the backup in order to restore it.