Hello,
Please take another look at the data you've imported as well as the various wiki pages for the Canvec import. I see some issues right away:
1. You appear to be importing more than the approved data types (e.g. https://www.openstreetmap.org/relation/18736785 , https://www.openstreetmap.org/way/1361881766 , https://www.openstreetmap.org/way/1361881990)
2. Footways overlapping other highways. No highway=* objects from Canvec should be uploaded. (e.g. https://www.openstreetmap.org/way/1361881992 , https://www.openstreetmap.org/way/1361881766)
3. Overlapping water areas. (e.g. https://www.openstreetmap.org/way/1361881743 , https://www.openstreetmap.org/way/1361881859 , https://www.openstreetmap.org/way/1361881987)
4. Deprecated tagging leftover. (e.g. https://www.openstreetmap.org/way/1361881987 )
5. Duplicate place=*: https://www.openstreetmap.org/node/12609014267
6. Duplicate natural=water on nodes (e.g. https://www.openstreetmap.org/node/12608030522 , https://www.openstreetmap.org/node/12606175009)
7. Relation with only a source tag: https://www.openstreetmap.org/relation/18736805
8. Duplicate nodes (e.g. https://www.openstreetmap.org/node/2442258591 , https://www.openstreetmap.org/node/12608016044)


Most of the above are only examples of each issue (the first few I came across). There are likely more examples out there as well as more issues; I only looked at a few small areas which you imported.
Unfortunately, importing Canvec isn't quite as simple as just uploading the data to OSM. There's a lot of prep work, conflation, validation, and cleanup that has to go into it.

Happy Mapping,
jmarchon