Hello,

I am getting the following error 

Error: package or namespace load failed for ‘biomaRt’ in get0(".packageName", env, inherits = FALSE):
 lazy-load database '/Library/Frameworks/R.framework/Versions/3.4/Resources/library/biomaRt/R/biomaRt.rdb' is corrupt
In addition: Warning message:
In get0(".packageName", env, inherits = FALSE) :
  internal error -3 in R_decompress1​

I faced the same issue, turns out removing the package and installing the last devel version seemed to solve the problem. Try

remove.packages(biomaRt)
biocLite("devtools")
BiocInstaller::biocLite('grimbough/biomaRt')

library(devtools)
library(biomaRt)

It should work.

Regards