Unknown Lotusscript Error using agent.runonserver

We have agents that use agent.runonserver and they work 95% of the time. What we are finding now is that these agents fail to run and generate “An unknown Lotusscript error” after our server has been up for a day or two. Once I recycle the server, the agent runs fine again.

We are running Domino 8.0.2 64bit on AIX.