https://www.canada.ca/en/immigratio...-after-january-1-2016-completeness-check.html
Check the link above ('Translation of documents' under Document Checklist).
When a document is officially translated by a Translator affiliated with a Translation Agencies Certification Bureau, they will issue an Affidavit stating the date that the translation was carried out, the languages from and to, the translator's official stamp, a foil seal label and signed both, by the Translator and the Commissioner of Oaths.
In the link above, for completeness check, you will see that IRCC requires this Affidavit along with the translated copies (signed, stamped and with an embossed seal on each page) and a photocopy of the original document. The submission of these documents is mandatory.
Contact your translator immediately and ask him for this Affidavit.
Good luck.