ZPanel Diskquota showing -1 Bytes?

For those of you using ZPanel, have you encountered this 'bug' before? My Disk Quota in use is showing -1 Bytes, although I am using like 50GBs or so.
I ran the daemon to recalculate the disk usage, but it says '-1 Bytes'. No response yet from the official ZPanel forums (which seem to go up and down lately).
Another account I added has disk quotas calculated just fine. Just the main account doesn't.
Thanks.