Thanks for sharing your experience with your Samsung Galaxy phone having issues of missing game booster and games plugin not working.
You can submit an error report through Samsung Members app as follows:
Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.
Step 2. Tap OK on agreement popup to send system log data.
Step 3. Select Symptom category "Application".
Step 4. Describe the problem in details and SEND.
For more assistance, you may contact us on our online Samsung support channels below.