Bro I can help u all it is very to fix this error just follow these steps
- Go to this location C:\Users\UserName\AppData\Local\BlockmanGo\client\Media
- Here you can see a file named engineVersion.json
- Open it with NotePad
- Here you will see a code which will be this "engineVersion": 10096
- Just here you have to change this number 10096 to 10098
- Quit the notepad after saving Open Bockman go web and enjoy