The Queenstown District Council had to call on Wanaka library staff it made redundant last year to help restore its computer system.
In response to Otago Daily Times inquiries, general manager operations Ruth Stokes denied the system had crashed recently.
However, ''some files'' were accidentally deleted from the Wanaka file server, hosted in Invercargill, and the recovery process ''didn't work as expected''.
Ms Stokes said some of the files Wanaka library staff had created, including some newsletters and statistical information, were affected.
''A few staff and former staff had copies of some of the deleted files at home, and were able to provide these to easily reinstate some of the information,'' Ms Stokes said.
''No critical information was lost, but some has proved time-consuming to reinstate.''
Ms Stokes said the council's back-up and recovery process for electronic information had worked well previously and was based on accepted practice.
''We have put an extra step in place for files created in Wanaka, to include them in the Queenstown system back-up process as an additional safeguard,'' she said.
