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Hello, everything was fine with my projects on Latex online, until today. The only difference I made is to add New command, after that I receive the following preview for all my previous projects, which I know were ok before. Can someone help?

Elo Elena
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  • you will have an undefined command error from \stackMath as you have not defined it. It is not a standard command you presumably intended to load some package?, and you get an error from the mis-used \\ on line 14 \\ should be very rarely used but if it is used it ends a line not starts one. – David Carlisle Feb 25 '21 at 11:45
  • the pdf preview seems unrelated to the errors, looks like you have crashed pdf.js somehow, try restarting your browser – David Carlisle Feb 25 '21 at 11:47
  • thank you everyone, it was my browser problem. Should i delete the question? – Elo Elena Feb 25 '21 at 12:02
  • not necessarily, other people may see same: you could self answer saying a browser re-start fixed it (but you should also fix those tex errors!!) – David Carlisle Feb 25 '21 at 12:44

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