Hey Karen,
Thanks for getting back to us, I can see that you already updated that ffmpeg correct path, but it seems like your web hosting provider installed very older version of ffmpeg on your server, you can check following execute log file :
ffmpeg version 0.7.5, Copyright (c) 2000-2011 the FFmpeg developers
built on May 8 2013 09:41:07 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
configuration: --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --prefix=/usr --libdir=lib64 --shlibdir=lib64 --disable-doc --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --enable-avfilter --enable-libdirac --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.122. 0 / 52.122. 0
libavformat 52.110. 0 / 52.110. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/wastebus/public_html/media/com_easysocial/videos/8/02a2d43eba379f2248d246405b7fa434':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2015-04-02 10:12:46
Duration: 00:00:29.10, start: 0.000000, bitrate: 134 kb/s
Stream #0.0(eng): Video: h264 (Main), yuv420p, 1064x720 [PAR 1:1 DAR 133:90], 132 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc
Metadata:
creation_time : 2015-04-02 10:12:46
[MOV/3GP/MP4/3G2 muxer @ 0x1479540] [Eval @ 0x7ffdddf69a50] Undefined constant or missing '(' in 'faststart'
[MOV/3GP/MP4/3G2 muxer @ 0x1479540] Unable to parse option value "faststart"
Invalid value 'movflags' for option 'faststart'
Easysocial FFMpeg version minimum requirement can support v2.8.x Library and above, can you request with your web hosting provider to help you update your FFMpeg version at least 2.8.x ?
Easysocial minimum requirements :
https://stackideas.com/docs/easysocial/administrators/welcome/minimum-requirements