今天系统报错，clamd服务起不来了，我是必须要升级吗？另外，升级会不会有什么风险？

Starting Clam AntiVirus Daemon: LibClamAV Warning: ***********************************************************
LibClamAV Warning: ***  This version of the ClamAV engine is outdated.     ***
LibClamAV Warning: *** DON'T PANIC! Read http://www.clamav.net/support/faq ***
LibClamAV Warning: ***********************************************************
LibClamAV Error: cli_hex2str(): Malformed hexstring: This ClamAV version has reached End of Life! Please upgrade to version 0.95 or later. For more information see  www.clamav.net/eol-clamav-094 and www.clamav.net/download (length: 169)
LibClamAV Error: Problem parsing database at line 742
LibClamAV Error: Can't load daily.ndb: Malformed database
LibClamAV Error: cli_tgzload: Can't load daily.ndb
LibClamAV Error: Can't load /var/clamav/daily.cld: Malformed database
ERROR: Malformed database