unable to delete runs or analyses from the ui
error :
08-08-18 08:07 - Core: Exception handler (WEB): Uncaught TYPO3 Exception: Call to undefined function ssh2_connect() | Error thrown in file /save/ng6-test/src/ng6-git-gsalin/nG6_ui_slurm/class.tx_nG6_eid.php in line 158. Requested URL: http://ng6-slurm.toulouse.inra.fr/ng6-mmanno/index.php?eID=tx_nG6&type=delete&del_level=analysis&data_folder=/work/ng6-test/jflow_mmanno/ng6&user_login=ng6-test&user_pwd=ng6L12*&user_id=4&ids=50717