Arduino Nano Blynk and OLED I2C

Good Evening,

i got a Problem is it possible that the combination Arduino Nano Blynk and a OLED doesnt work ?

if i start the programm wthout blynk it works fine when i add the code for blynk i got a blackscreen.
i got the same datas on Blynk aswell on the OLED

pls help

here the codes

Programm 1

Programm 2

It can and will work just fine.

How are you connecting the Nano to the Server?

Please post the code, properly formatted, here.