It says there is no space left on device. Apparently, you have not assigned enough storage capacity for your ITA installation. You would at least need to have 100 GB storage capacity for your ITA server.
I would suggest rebuilding the server, by: a) clean installation of ITA (based on system requirement with at least 100 GB storage) b) and then restoring the latest backup file (from the current setup).
Note: System files are usually located in the root partition, so during the installation preparation make sure the root partition '/' gets most of the storage capacity.