I don’t know what the 401 means after the date and time maybe a line number but the rest of that is just saying your computer which has an IP address of 192.168.130.58 browser Firefox version 66 is making a request which is just basic info. This is not the log data we need.
To get the startup code flow where is most likely where the error will be hiding restart your Node red addon and then keep clicking the refresh in the log and you will see node red going through the loading process when it stops loading say up to 5 mins then copy and paste the log again.
ps the character for getting code format is not the quotation marks " it is three back ticks ` together, on my keyboard (qwerty US) it is at the top left of the keyboard to the left of the number 1 (you can see under point 11 here)