Invalid _spender address
#RC#

Verify

A transaction that is stuck in a “pending” state is usually a result of insufficient gas fees. Always verify the Dapp-Learning contract address on a trusted block explorer before confirming any call. Increasing the slippage tolerance slightly can help bypass a transaction that keeps reverting.

It is highly recommended to use a dedicated browser profile for all your decentralized app interactions. The Dapp-Learning contracts might be temporarily “locked” during a transition. Check the official social media feeds for real-time announcements regarding protocol health.

It is worth checking for any active governance proposals that change logic. Make sure you are not trying to execute a trade with insufficient liquidity. Layer 2 network delays can sometimes lead to “ghost” transactions that appear later.