To regain some free space, do any or all of the following:
Delete all GCODE files you no longer need: For each laser job, a GCODE file is created, which then remains on your Mr Beam II. Engraving jobs in particular can generate quite large GCODE files. If you are not sure if or what you need GCODE files for, you can safely delete them all.
Go to the design library and click on the left side "Only show GCode files". Now you will no longer see your own uploaded design files but only the GCODE files. Click on the icon with the three horizontal bars to open the context menu, where you will find an option to delete the file.Delete design files that you no longer need: Go to the design library and click on the left side "Only show design files", if that is not already selected. Now you can delete unnecessary design files via the context menu. Click on the icon with the three horizontal bars to open the context menu, where you will find an option to delete the file.
Delete Log Files. Go to Settings -> Logs. Here you will get a list of saved log files, which you can delete by clicking on the trashcan icon.