If you have lost your job through no fault of your own, for example, business closure, you may be eligible for employment insurance regular benefits. To apply online for Employment Insurance (EI) regular Benefits go to:
https://www.canada.ca/en/services/benefits/ei/ei-regular-benefit/apply.html
This link provides a great deal of information on the Employment Insurance benefits from the Government of Canada for both regular and sickness benefits.
** Apply for benefits as soon as you stop working. You can start your application process even if you have not yet received your Record of Employment (ROE).