Ion XE error code: console status has changed and all lights turn off and usually turn back on within 10-45 seconds but it is happening repeatedly. What could be the issue?

So the theater I've been working at has had this issue for almost 2 years. Every once in a while, not consistently, everything just turns off. Then it takes everything usually 10-45 seconds to come back on. Tonight it was happening repeatedly and things weren't even getting to turn back on while it was happening. Our local vendor has been in and tried so many different things and now thinks that maybe it's an issue with rely between the old dimmer racks and the new ones. Has anyone had this issue before?

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