@Sheda1987 Removing your mods shouldn't affect your free space unless your mods were on D and you moved them to C. Otherwise, it sounds like you just copied the Mods folder. At any rate, it's fine to store the mods on D for the time being. Even if free storage wasn't originally an issue, it's going to be now and can therefore complicate troubleshooting.
Please also post the relevant details from the newest crash. You can upload a new crash dump if you want, or just look for the info in the Reliability Monitor. Hit Windows key-R and enter "perfmon /rel" without quotes, and you'll see a chart of errors and updates with a column for each day. Today is on the right.
Look for an error that happened at exactly the time of last night's crash. If you find one, double-click it to see more details, then copy that info and paste it into a reply here. If you don't see a corresponding error, please say so, and also let me know whether the crash was Sims 4 only or your whole computer crashed too.