Hello,
You have trial version to test WRobot for private servers before purshase.
Try to increment your min/max latency in advanced general settings
If your problem is not resovled, can you read this: https://wrobot.eu/forums/topic/1381-repairinstall-wrobot/#comment-966 and can you share your log file please ( https://wrobot.eu/forums/topic/1779-how-to-post-your-log-file-with-your-topic/ ).