The vbseourl= rewrite technique is deprecated and you should update your .htaccess with the current vBSEO rewrite rules.
vbseourl was from vBSEO < 3.3.0 and I believe 3.3.2 is the earliest version that works with VaultWiki, although I could be wrong about that and the earliest version might be 3.5.0. That said, vBSEO versions < 3.6.0 had other compatibility bugs that they fixed for the gold release.