Gas estimation failed: Error

[TimeKeyRoll]

Gas estimation failed

Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending?
execution reverted

Hi! i have been trying to test the fund function on testnet and have enough eth but still getting this error. can anyone please help me to understand this?

[TimeKeyRoll]

Awesome. I figured it. It was Link token error. I tested it while having some link token in my account on rinkbey and it's done. Thank you guys.