I have all the dependencies for OPT installed (B9PartSwitch and OPT Reconfig). Done manually not trough CKAN.
Here's the error message:
Fatal exception while loading fields on module ModuleB9PartSwitch on part
Exception while loading field subtypes on type B9PartSwitch.Moduleb9PartSwitch
Exception while laoding fields on subtype PartSubtype.HLOX
Exception while laoding field tankType on type B9PartSwitch.PartSubtype
NO tank type named 'OPTLH2O' exists