Here is form . Download it through Adobe reader, fill and send after AOR . No need to wait for them to ask .Thank you very much for your reply @Miss bee , you don't know how much it relieves me.
Regarding sending it after the AOR, should I wait for them to ask me for the correction or should I send it myself? Because the forms that have problems are the ones that generate PDF automatically (IMM0008, for example) and I don't really know how to generate them again.
https://www.canada.ca/content/dam/ircc/migration/ircc/english/pdf/kits/forms/imm0008enu_2d.pdf