Citation bug

Citation is not working. Info on Bioconductor page

> Citation (from within R, enter citation("InterMineR")):
Important note to the maintainer of the InterMineR package: An error occured while trying to generate the citation from the CITATION file. This typically occurs when the file contains R code that relies on the package to be installed e.g. it contains calls to things like packageVersion() or packageDate() instead of using meta$Version or meta$Date. See R documentation for more information.

Error given:
`citation("InterMineR")`
```
Error in tools:::.parse_CITATION_file(file, meta$Encoding) :
non-ASCII input in a CITATION file without a declared encoding
```