If you see a notification stating that the token is under maintenance, it means that the reserves/liquidity providers supporting this token on Kyber is in the process of rebalancing and refilling their token inventory. Kyber has over 45 reserves and most of them are managed by other token teams or market makers.
Please inform the KyberSwap team whenever any reserve goes under maintenance and we will contact the reserve to refill their token inventory. Kindly wait for the reserve to be active again and join https://t.me/KyberSwapOfficial