Portal problem

I've been using the portal a lot over the last couple of weeks to keep track of my shop stock, sales and customers but for some odd reason when I opened it today all of my sales and statistics had disappeared *unsure* It still states my overall statistics on the main screen, but I can't view any graphs or statistics found through the sales history section. I can still view my customers and all the details they had but all the statistics from my sales and profits have vanished. Is this permanent or is there some way I can get them back? Wow, I don't think I've ever said the word "statistics" so many times... :P Other than that, great program to use :)

I deleted the two files and submitted the new sales, so that's all going well :) It still seems to know my overall profit and customers, so that's half the battle. All that's really missing now is the graphs, other than previous statistics. As for resubmitting...yeah, I don't think I'll worry about that, haha. Thanks for the help! :D

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