SSPR container does not start on install

Trying to run the SSPR install as discussed here

When running the command to modify the container 


docker exec -it sspr-container /app/ ImportPropertyConfig /tmp/


It responds with 

Error response from daemon: Container 26488095e09af36104da1bcac0930093276bb0ca865b5393b7aa3451d10b9f9f is not running

restating the container manually (docker start sspr-container) only has it exit immediately

the sspr directory in /data only has the gc.log file with this entry

"[2021-02-19T22:17:41.609 0000][0.041s][info][gc] Using G1"

any ideas?