Toasts keeps showing every time I save

[bilogic]

[Error - 11:31:13 AM] Request textDocument/documentSymbol failed.
  Message: Request textDocument/documentSymbol failed with message: host.fileExists is not a function
  Code: -32603 
[Error - 11:31:13 AM] Request textDocument/documentSymbol failed.
  Message: Request textDocument/documentSymbol failed with message: host.fileExists is not a function
  Code: -32603 

It's my day 1 with volar. I'm lost about host.fileExists as I cannot find it in my project at all, any idea?

[bilogic]

Was using an outdated version from https://open-vsx.org/extension/johnsoncodehk/volar