bol have indicated that they have partially resolved the issue, but that for some customers problems remain. We have resumed normal processing for synchronizing items, stock updates, prices, ads and orders between Channable and bol.
If you are affected by the remaining issue, the Channable tool will show a red 'Failed' status on the affected API until the issue is resolved by bol. For further updates on this issue, please see the bol status page: https://developers.bol.com/en/news/issue-with-connecting-to-our-api