Help needed - Upgrading from 3.6.9 to 3.7.X throws error

[philshil]

Hi,

I originally tried going from 3.5.8 to 3.7.X and it threw an error so manage to go to 3.6.9 but then we going to 3.7.X i still get th same error shown below. Causes Netbox to break. Ideally i'd like to get up to current version.

Applying database migrations (python3 netbox/manage.py migrate)...
SystemCheckError: System check identified some issues:

ERRORS:
vpn.IKEPolicy.mode: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IKEProposal.authentication_algorithm: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IKEProposal.authentication_method: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IKEProposal.encryption_algorithm: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IPSecProfile.mode: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IPSecProposal.authentication_algorithm: (fields.E120) CharFields must define a 'max_length' attribute.
vpn.IPSecProposal.encryption_algorithm: (fields.E120) CharFields must define a 'max_length' attribute.