Problem running docker from public repo

[fullergalway]

Looks promising but there's an error message then it exits. :-(

$ docker run rocketbaseio/pdfmaker

> pdfmaker3@1.0.0 build
> tsc

src/services/pdfmaker.ts(74,73): error TS2345: Argument of type 'string | string[] | ParsedQs | ParsedQs[] | undefined' is not assignable to parameter of type 'string'.
  Type 'undefined' is not assignable to type 'string'.
src/services/pdfmaker.ts(106,29): error TS2345: Argument of type 'string | string[] | ParsedQs | ParsedQs[] | undefined' is not assignable to parameter of type 'string'.
  Type 'undefined' is not assignable to type 'string'.
npm ERR! code 2
npm ERR! path /app
npm ERR! command failed
npm ERR! command sh -c tsc

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2020-12-09T14_44_17_046Z-debug.log

Pretty sure I'm using latest container

$ docker image inspect rocketbaseio/pdfmaker | egrep  '(Id|Created)'
        "Id": "sha256:a7cb62a2dbac111990bcaeb8466d1222a84374aeb50da2c336cb3e8e776e5c6a",
        "Created": "2020-12-02T12:49:42.507080339Z",

Thanks