Hi again

There is a sub-forum on technical advice and questions: https://forum.lowcarber.org/forumdisplay.php?f=13

but in general, because this is an old platform, the sizes allowed are Very Small.
You can find the details above, but it has to be smaller both in pixels total, and in dimensions. I use a resize function that is under Edit in my photo app, but it always takes multiple tries. Keep working on it...Good Luck!