All Ethereum based coin/token transfers to Celsius are processed by a smart contract, which needs more gas than the default limit of 21,000.
In order to process the transfer, you will have to increase the gas limit from 21,000 to 60,000. If you miss this step you will run out of gas and won't have enough to execute the transaction, resulting in a failed one.
Here's an example of a transaction with not enough gas:
Remember, you are only setting the gas limit and only the necessary amount to process the transfer will be used. Any unused gas that remained after executing the contract will be returned to your balance.
Here's an example of a transaction with enough gas due to the limit increase:
You can find out how much Gwei you should use on ETH Gas Station.
You can check the status of your ERC-20 transactions by using Etherscan.