If you previously installed the "unofficial" mod to add SODE jetways to KDEN Ver 2, then you will also have to do the following for KDEN Ver 3:
Go to your SODE folder, normally found here: C:\ProgramData\12bPilot\SODE\xml
Delete the following file in that folder: KDEN.xml (probably dated 8/8/2018)
(Alternatively, just to be sure, you could rename it KDEN.xml.off or KDEN,xml.bak, then check to see if worked.)