Error after input authetication key

[adthonb]

Hello

I try to use grive2 but I can't pass the verification step. After I input key from google, I got this error.

Please input the authentication code here:
SOMEKEY
exception: /build/grive2-3WknWe/grive2-0.5/libgrive/src/util/File.cc(128): Throw in function void gr::File::Open(const boost::filesystem::path&, int, int)
Dynamic exception type: boost::exception_detail::clone_implgr::File::Error
[gr::expt::BacktraceTag*] = #0 0x812afe6 grive gr::Exception::Exception()
1 0x812d40a grive gr::File::Error::Error()
2 0x812c8df grive gr::File::Open(boost::filesystem::path const&, int, int)
3 0x812c9cf grive gr::File::OpenForWrite(boost::filesystem::path const&, int)
4 0x812c744 grive gr::File::File(boost::filesystem::path const&, int)
5 0x8132f25 grive gr::Config::Save()
6 0x80e7031 grive Main(int, char**)
7 0x80e7d7f grive main
8 0xb71a5a83 /lib/i386-linux-gnu/libc.so.6 __libc_start_main
9 0x80e5db1 grive

13, "Permission denied"[boost::errinfo_file_name__] = ./.grive
[boost::errinfo_api_function__] = open

I can use this before on same vps but now I can't

[vitalif]

This is a "Permission denied", check your file permissions :-)