Blue Voda wont open pages and crashes

I have designed pages and have 4 websites so have 4 folders – i then go back into one of the folders to opne a page to work on and none of the pages open but simpy crash Blue Voda yet if i go to another folder the files in that one opens ok – so i cant work on pages i have designed for 1 website and will not know till i try again if any nore do the same – why would this be happaneing and what can i do about the pages i cant access

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Blue Voda wont open pages and crashes