What do I do when i get this error message: Memory full. Close one or mre to start JmeShell.pxo.

It's not a good make and if you reset and it didn't fix, then it is a hardware issue and isn't going to improve. Apple iPad is the brand leader for a reason.

16 Gb capacity is very low, my iPhone 7 has 128 Gb. Try removing some apps. Ideally you don't want to have more than 60% full.

If you have option to install SD card then do it and move some pictures, videos, songs and apps to SD card. If you have laptop that doesn't accept memory cards: you must delete something.

This means the internal memory is full and the only way to add apps is to uninstall other apps that you have installed. Check to see if you have apps you no longer use and uninstall them.

If many apps are running, you may get a "not enough Memory" error message. You can close down some currently running apps and you might be able to install more. Then again, maybe it doesn't have enough memory for more apps. Just a thought.

Then the memory is full, simple as that. Clear the memory.

Try to fine out if it is a hardware issue or a software one. Software or full memory problems you can solve yourself by making free some memory or restarting the chrome. When you have a hardware error, you need another device. Lucky you, chrome saves (almost) everything in the cloud.

Your memory for apps might be full. Go to Settings > Storage and look at the top bar graph. If it says it's full then there's your problem. You'll have to delete some apps or clear data and cache on some in order to get some room freed up. You might be able to move some of the apps to an external SD card if you've put one in the slot if you have a slot.

Or, if the top bar graph says 00 bytes of memory then your
app partition got trashed somehow - probably a faulty internal SD memory. I have this problem on a Nobis NB09 and so have a lot of other folks when I Googled Nobis stuck on Go and NobisNB09 won't boot up etc. Nobis fixed it once but it lasted only two or three weeks and now they won't issue me another RMA number. I would advise everybody to not purchase Nobis - now run by Bidwell products as they don't seem willing to honor warranty.

Too many apps - remove some and download and run a system cache cleaner like ccleaner.

Check for viruses

Delete apps that you don't or rarely use.

You didn't click "Submit" or "Complete Payment" did you?

If that ecommerce solution is so lousy that it won't let you edit your cart, I'd simply bail! Close that window. If you hit the site again and your basket pops up still full - and if you want to buy any of those items from that vendor - look for a 'help' link or 'contact us' link. Tell them what happened, and to please fix their dang cart lol!