Error on version 6.2

Error: sources.:rd:.tiles: array expected, string found
    at Object.xa [as emitValidationErrors] (main.6cd3a572.js:2:977398)
    at tt (main.6cd3a572.js:2:1317452)
    at nt._validate (main.6cd3a572.js:2:1337932)
    at nt.addSource (main.6cd3a572.js:2:1327174)
    at Map.addSource (main.6cd3a572.js:2:1580894)
    at main.6cd3a572.js:128:274638
    at il (main.6cd3a572.js:2:712124)
    at Tc (main.6cd3a572.js:2:732351)
    at main.6cd3a572.js:2:731086
    at xc (main.6cd3a572.js:2:731152)

I have this error since updating to version 6.2 what should I do?

There's no such file in 6.2. If you recently upgraded, make sure you clear the browser cache first.