Well if your status has expired within 90 days. You can apply again for the open work permit. But this time check the box that says you want to restore your status as a worker. It till be an extra $200 on top of the $150.
(probably better if you send in an explanation letter of what had happened on why your permit expired and you didn't renew it.)
This is as per CIC website.
Restoration of status
You may seek restoration within 90 days after your status as a visitor, student or worker has been lost, because you failed to comply with one or more of the following conditions:
You remained in Canada longer than the period authorized for your stay (but not longer than 90 days).
You changed employers or type of work before obtaining a new work permit.
You changed the type of studies, educational institution, location of studies, or times and periods of studies without applying to change these conditions on your study permit if they were specified on your study permit.
You may still be eligible for restoration if you continue to meet the initial requirements for your stay and have not failed to comply with other conditions imposed.
You may wish to complete an application to apply for restoration of temporary resident status and for a new study or work permit. There is no guarantee that your application will be accepted. On your application you must provide full details of all the facts and circumstances that resulted in you committing the offence.
If you wish to obtain a new study or work permit and restore your temporary resident status, you must pay the permit fee in addition to the restoration fee.
Restoration applies to each family member who has lost his or her status.
An officer will evaluate your request for restoration of status and if approved will process your application for a study or work permit. You will then be advised of any further action to be taken.
Note: You may not study or work in Canada until your application for restoration has been processed.