I see you're importing an Harmony Endpoint server with MSI files. This one took me a few tries also.
Make a fresh install on the target server, run the FTW and then do not install the jumbo. It always failed to import the export when I did it first.
Run the migrate-server import procedure on R81.10 on the newly installed SMS then when done install the jumbo, which can take about one hour for the EPS component.
Make sure your migration tools are up to date on the source and target servers as per sk135172 - Upgrade Tools package for upgrade from R80.20 and higher (checkpoint.com)
In my case, also I had to use the --ignore-warnings flag. Also, make sure you have plenty of disk space available in your partitions. Even with a few MSI in the store, my export was more than 6GB.