proftpd not found , any idea? (debian 7)

Error
Failed to start service :
Starting ftp server: proftpdca proftpd[2162]: mod_tls/2.4.3: compiled using OpenSSL version ‘OpenSSL 1.0.1e 11 Feb 2013’ headers, but linked to OpenSSL version ‘OpenSSL 1.0.1t 3 May 2016’ library

ca proftpd[2162]: mod_sftp/0.9.8: compiled using OpenSSL version ‘OpenSSL 1.0.1e 11 Feb 2013’ headers, but linked to OpenSSL version ‘OpenSSL 1.0.1t 3 May 2016’ library

ca proftpd[2162]: mod_tls_memcache/0.1: notice: unable to register ‘memcache’ SSL session cache: Memcache support not enabled

ca proftpd[2162]: mod_dso/0.5: module ‘mod_tls.c’ already loaded

ca proftpd[2162]: Fatal: LoadModule: error loading module ‘mod_tls.c’: Operation not permitted on line 5 of ‘/etc/proftpd/conf.d/virtualmin.conf’
failed!

Distribution/version?

It looks like you’ve upgraded proftpd to a new version, but your openssl library is older than what proftpd was built for. Have you enabled additional repositories or perhaps switched off of stable (if this is debian/ubuntu)?

i have debian 7

deb http://ftp.ca.debian.org/debian/ wheezy main
deb-src http://ftp.ca.debian.org/debian/ wheezy main

deb http://security.debian.org/ wheezy/updates main contrib
deb-src http://security.debian.org/ wheezy/updates main contrib

deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-wheezy main
deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-universal main

deb http://packages.dotdeb.org wheezy all
deb-src http://packages.dotdeb.org wheezy all

deb http://packages.dotdeb.org wheezy-php56 all
deb-src http://packages.dotdeb.org wheezy-php56 all

I have dotdeb in respositories because I have PHP version 5.6.31 and MySQL version 5.6.37 installed.

Joe? any idea?

my comment is moderated

thx

bump

I still can not find a solution.