Got this error while generating an invoice from order.
8.1.7 / PHP 8.1
TCPDF ERROR: GD library error: Warning: imagecreatefrompng(): gd-png error: cannot allocate image data
imagecolorat(): Argument #1 ($image) must be of type GdImage, false given
[TypeError 0]
EDIT: Fixed by formatting invoice logo image to png and the upload.