You have to login to WES and apply for duplicate report and send the same to OINP.
Please follow the below steps:
1) Login to your WES account
2) On your Initial Application Order, click Order Duplicate IRCC
3) Select Immigration on the Purpose > Click Next
4) Recipient 1: NO
Recipient 2: Delete IRCC
Click 'Add Recipient'
5) Search 'Ontario' > Select Ontario Immigrant Nominee Program, MIIT
6) On the 'Attention To', enter your OINP File Number, e.g. XSHW-12345 > Click Add this Recipient > Next
7) Review your order. You'll see this:
Recipient Information
Recipient 1: Ontario Immigrant Nominee Program, MCIIT Edit
Division: Opportunities Ontario, Provincial Nominee Program
Department: Ministry of Citizenship, Immigration, & Intl Trade
Number of reports: 1 ($30.00)
Delivery Method: Standard Mail via Canada Post - $7.00
Harmonized Sales Tax (HST): $4.81
Total Price: $41.81 (All fees are in Canadian dollars.)
8) Click Submit and make Payment