How To Fix "Unfortunately Samsung Account Has Stopped"

Samsung Galaxy phone you may well have seen an error message flash up reporting that 'Unfortunately Samsung Galaxy has stopped'.

'Unfortunately X has stopped': What does it mean? 
The error message means an app has crashed and so you could just relaunch the app, but what should you do if you keep seeing the same error message?
Here is One of fix for 'Unfortunately Samsung Galaxy has stopped' error message .
'Unfortunately Samsung Galaxy has stopped' is a software issue, which can often mean you will be encouraged to perform a factory reset. For many people this has solved the problem, but in doing so you will also lose any data and your settings on phone

Instead, uninstalling and reinstalling an app or clearing its cache will usually solve the issue of apps crashing without you performing a factory reset.
Stpes To clear an app's cache and fix app crashes in Android 

Step 1. Open the Settings menu and choose Application Manager. (On non-Samsung phones open the Settings menu and choose Apps.

Step 2. Tap the All tab, then look for and tap on the crashing application - in this case 'Samsung Galaxy'. 

Step 3. In this order select Force Stop, Clear Cache, Clear Data. 

Step 4. Restart the phone and check wheather it solves or not.