Weird that GPIO11 and GPIO12 are not available at pins labeled 11 and 12 (meaning GPIO11 and GPIO12).
That implies that the board has two GPIO ports LESS available and that DIO1 and DIO2 will have to be manually connected to GPIO ports on other pins when needed. I can’t think of any good reason for that.
If the pins labelled 11 and 12 are not GPIO11 and GPIO12 then be prepared for more inconsistencies.
The simplest configuration for testing ESP32+LoRa is download the LMIC-Arduino library (the one mentioned in topic start) and use its ttn-abp.ino
example (without adding any additional features). This will send a small string as payload for testing. If that works you can start trying other adventures (OTAA, your own messages etc.).
“and the only thing I see is the framecounter”
No messages showing up in the data tab?