MinimServer not restarting in QNAP container after update

[daedlo]

Simon
After updating my QNAP 451+ to QTS 4.3.4.0644 build 20180710 I noticed that the version of MinimServer I run in a container does not restart. When I try to start it and Java they both come up with the message:

Failed to start container
500 Server Error: Internal Server Error ("error creating overlay mount to /share/CACHEDEV1_DATA/Container/container-station-data/lib/docker/overlay/d40a6d4e212e32dd8541036a7f60d3ae1b04d8510d3ba7b5df7772147087e2cb/merged: no such file or directory")

I am running MinimServer 0.8.5.2 update 123.

Any help appreciated