Zigbee Message limit reached

I am using zigbee Home automation and have 3 entities.
2 motorised Blinds and generic zigbee coordinator.
I have the blinds on a automation to close at sunset.
All has worked fine for about 3 or 4 months but now I get message
“Error during service call to cover.set_cover_position: Failed to send request: Failed to enqueue message: < sI_Status.ZIGBEE_MAX_MESSAGE_LIMIT_REACHED: 3075>”
The blinds now won’t work either from the automation or from dashboard card.
What do I do to get this working again?

I’ve since found that reloading the zigbee integration has got them working again but is there anything I can do to prevent this happening again?