Minor formatting issue for citing websites

While citing a web-site, space is missing between the year and the title of the page. Example:

Interoperability Working Group (AFUL). 2015.Definition of Interoperability. Available at http://interoperability-definition.info/en/ (accessed November 11, 2015).

That’s an issue with the citation style you are using. Paperpile uses styles from https://citationstyles.org which is a community project. Unfortunately a missing space among 8000 different styles can happen. Which style are you using?

This is for PeerJ style. I looked at the repo, but could not quickly figure out what needs to be changed to fix this…