Zoho Books anomaly

Zoho Books anomaly

I imported 200 lines from a credit card statement; 
all 200 lines have been matched to an expense type or a transfer from bank....
after that, I  deleted the statement but the 200 transactions continue to reside in the system...
my credit card should have a zero balance now but now the Zoho Books account shows $6,000.. how can I fix this?