I recently filed a report at the police station saying that I have lost my BRP.

Does this mean I have to apply for a new BRP? I don't think I have to since I cancelled the report and never sent an application to the home office saying it's lost. But I am planning to travel and am worried if there will be any problems.
I have also done the right to work employer check and when I input my BRP number it says that I can work till March 2019. Surely, if it was invalid the website would not have shown that?
