This how my config looks like:

... "TransportCopter": null,
"Chinook": {
"name": "Chinook",
"prefab": "assets/prefabs/npc/ch47/ch47.entity.prefab",
"purchasable": true,
"price": 1000000,
"cooldownToSpawn": 0,
"distanceToSpawn": 15,
"commands": [
"chinook",
"ch47"
...

Can't buy a scrap copter or ch47 now. 

me too

Ok so there are couple problems . 

When updating to the new mod it is not formatting the json config file correctly. So before uploading the new mod backup you vehiclelicense.json and delete the old one. Now upload the new mod it will recreate the config properly and you can put you settings back in. 

Merged post

After that there is a problem with the language file because it holding the same value as the minicopter so whatever price you set on minicopter reflects on transport copter . To temp fix this go into the Lang file and replace the {5} for scrap copter with the amount you want it to cost. Like 10000 without the {} . This is happening because scrapcopter is not listed as a variable in another section of the code which I posted on another tjread

Thank you ipinvader,
ch47 works again.
The scrapcopter seems to be missing in my language file and i still can't buy it, so i changed the price for the minicopter but it is still the same.

You can delete that language file and then from within the game goto the console “f1”

do a oxide.reload VehicleLicense —- check spelling and it will recreate that file to. Then you will see the scrap copter in the language file with a {5} like mini copter. Replace {5} with actual price not including the {} . Once the dev fixes the missing string in the mod then scrap copter should become {6} and ch47 should become {7} and work again. I’m just giving a temp fix till it’s rewritten. 

Thank you :D,
it works :D