Check buildpro/tmp directory for webapimanager.log and xdev_err.txt to detemine problem.

You could be out of message queues. Run "ipcs -q" and "ipcrm msg [msgid]" to remove unused message queues.

Make sure that todayx binaries have been licensed (try running bin/todayx by itself)

Incorrect permission on one or several files. These could be in buildpro/sfiles, buildpro/tmp, /tmp or /usr/tmp. This could occur if webapimanager was previously started as 'root'.