Synchronization Issue With Zoho Bigin & Zoho CRM

Dear people from Zoho,

Last week I setup Zoho Bigin and added a link with Zoho CRM. All my contacts & clients were synchronized from Bigin to Zoho CRM witch was great. A few days later I made some changes to the contacts & clients inside Zoho Bigin and decided to clean up the Zoho CRM data and remove all the old contacts & clients and after that synchronize all the new contact & client data again from within Zoho Bigin.

Unfortunately now I see the message inside Zoho Bigin that everything has synced well, but no contacts & clients are showing up in Zoho CRM anymore. Even when I look at the disk space setting page inside Zoho CRM it says 0kb for contacts & clients.

I tried to reset all synchronize settings inside the Zoho Bigin intergration tab but that diddn't help.

Could you help me out with this issue?

Best regards,

Nico