We couldn’t recreate your issue; I think in your application, some tiles’ requests are incorrect, for example the bounding box has some invalid value, such as BBOX=-180,-91,180,NaN, which will throw the exception you mentioned, could your provide us a demo to help us recreating your issue?
The exception is not thrown by Map Suite but system; we really couldn’t recreate this issue without more information, such as map unit, map data, projection, overlay type, etc. Please provide your map configuration and send us the error image URI.