Something is gone wrong

[PetrosKa]

Thank you both for your comments, the bad gps signals are on the 5th when I did restart the board and till the gps picks up signals again it leaves those blue lines (bad gps signal) they appear further down at other dates when I restarted the board a few times. After the 4th when I noticed that there was something wrong I did a lot of changes to the settings trying to get it back, till now that I've run out of ideas.