According to the ONT Foundation, the ontology main-net is undergoing an update.
During this period, we will temporarily suspend the exchange of points to MBL for security reasons.
Once the update is finished, points exchange will resume.
Thank you.
※ Exchange announcement
Binance: Binance Will Support the Ontology (ONT) Network Upgrade & Hard Fork | Binance Support
※ ONT update is finished(Aug.21 2023) now you can use exchange MBL through KMPlex.