I had something similar to this before. I found out that my spells_us.txt got corrupted somehow, and kept kicking me. 
 
I suggest a patch to live to see if it refreshes the file, and if it does, make sure you have that file in the directory you run zone.exe from. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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