The halt is a "Cease Trade Order". According to the Ontario Securities Commission, a CTO is issued for the following reasons, none of which appear to be positive if I'm reading this correctly:

The OSC may issue a CTO against a company for a number of reasons including:

• if it files a disclosure document, such as annual financial statements, late - or not at all;
• if we find that a document contains a significant deficiency; or
• if, after holding a hearing, the OSC determines it is in the public interest to do so.

In addition, when the length of time required to conduct a hearing could be harmful to the public interest, the OSC can issue a temporary CTO until the hearing is concluded.

https://www.osc.gov.on.ca/en/19855.htm