Global service stops for unknown reason

Hello again,

We have developed a global service using the developer studio. This service is supposed to react to some events (like create resource, create link, etc) in some repositories. After deployment, the service works perfectly, but only for a certain period. After some time, the service just stops reacting to events and it does not run anymore (no log messages appear, nothing that would help us debug).

Have any of you encountered a similar behaviour, and if so, what can be done, or what might I have done wrong?

Thanks in advance,

Silviu Lipovan Oanca.