Owncloud for Home is unresponsive.

Owncloud Home has stopped working. Webconfig page for Ownloud has only this a note at the top.

"Ooooops: No entry for terminal type "unknown";"

Nothing else on that page. Strangely the MarketPlace Has:
"Marketplace Unavailable
Another user or service is currently using the package manager. Marketplace is not available until the package management system becomes available."

The command :"[root@MyServer ~]# Yum-complete-Transaction" ends up at "No unfinished transaction left."
If anyone has something I could try, I would appreciate it.