Hi Himesh,
You need to make Gmail account less secure in order to solve this issue;
- Login to your Gmail account manually on the browser
- Click on Google Maps icon from your profile (present in left of your profile icon)
- Click on the Account option
- Search “Less secure app access” search box
- Turn ON “Allow less secure apps” option
- Restart the process-studio and check
Thanks and Regards,
Archana Muley