lost /opt/jrun4/lib/wsconfig/1/jrunserver.store

We have 3 identical CF8 servers and only one is complaining:
[Mon Apr 7 15:44:22 2008] [notice] jrApache[15779:43727] could not open "/opt/jrun4/lib/wsconfig/1/jrunserver.store": Permission denied
[Mon Apr 7 15:48:30 2008] [notice] jrApache[15780:43749] JRun closed connection. [6] dropped while sending command
[Mon Apr 7 15:48:30 2008] [notice] jrApache[15780:43749] could not initialize proxy for 127.0.0.1:51020
[Mon Apr 7 15:48:30 2008] [notice] jrApache[15780:43749] could not open serverstore "/opt/jrun4/lib/wsconfig/1/jrunserver.store": No such file or directory
[Mon Apr 7 15:48:30 2008] [notice] jrApache[15780:43749] Couldn't initialize from remote server, JRun server(s) probably down.
[Mon Apr 7 15:48:30 2008] [notice] jrApache[15839:44245] JRun closed connection. [5] dropped while sending command

"No such file or directory" makes no sense since the directory exists on all 3 servers but jrunserver.store does not exists on any of them!