Out of GPU Memory

Hello @Ratul_Bhattacharya2795 Thanks for reporting this issue. Could you please share the following so that we can investigate:

1.  Your Illustrator version (Help > About Illustrator).
2.  Your operating system version (Windows/Mac + version).
3.  Your GPU model and driver version (you can find this via your system’s display settings or device manager).
4.  Whether the issue happens only with specific files or even with a blank new document
5.  Has this happened in the past? If yes, what did you do then?
6.  If you’ve tried resetting Illustrator preferences (hold Ctrl+Alt+Shift while launching Illustrator). Please note this will reset your custom preferences, if any.

As a quick check, you can also try going to Edit > Preferences > Performance and turning off GPU Performance temporarily to see if the warning disappears.