Can't sync two 3DS consoles

[andynameistaken]

I wanted to use this software to sync saves between two 3DS consoles (JKSM).
I generated .ini file and it worked fine on first console.
On second console with the same .ini I'm getting:

Curl result: HTTP response code said error

[jeros-xyz]

for dev : token is short life time. must implement OAuth refresh token
https://dropbox.tech/developers/migrating-app-permissions-and-access-tokens#updating-access-token-type
it's work for 14400 seconds (expires_in=14400)

source/libs/inih/ini.h:136 INI_MAX_LINE
source/libs/inih/ini.h:149 INI_INITIAL_ALLOC

Increase value to be able to read long token