DG Shipping — multiple entries of coc shown in my dg profile

Address: Kolkata, West Bengal, 712102

Dear sir,
When i try to apply online for revalidation of my coc through dg e-governance, an error dialogue pops up saying there are multiple entries for my coc and contact authorities to correct same. Both entries mention the same coc,
Kindly rectify the entry so that i can fill up my revalidation application form.
Best regards
Capt. Subir biswas
Indos no. 00nl3330
Email id '[protected]@yahoo.co.in
Phone: [protected]