Water Mark on Image - intervention/image/src/Intervention/Image/Commands/Argument.php on line 41

How to solve this error, I'm trying to add watermark on the image but getting below errors:

libpng warning: iCCP: known incorrect sRGB profile libpng warning: iCCP: cHRM chunk does not match sRGB [Mon Oct 1 15:06:36 2018] PHP Fatal error: Maximum execution time of 60 seconds exceeded in /var/www/newProject/vendor/intervention/image/src/Intervention/Image/Commands/Argument.php on line 41

via Chebli Mohamed