hi version last, with fix for config :)

if:

"Log to file": true,

i have this:

Could not initialize plugin 'BackPumpJack v1.4.30' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.BackPumpJack.PrintToLog (System.String message) [0x00072] in <3261ec3b63414885927470491d5e96d9>:0 
  at Oxide.Plugins.BackPumpJack.LoadConfig () [0x001d3] in <3261ec3b63414885927470491d5e96d9>:0 
  at Oxide.Core.Plugins.Plugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0000f] in <beb2b64691c64e2b95b99491bd85442c>:0 
  at Oxide.Core.Plugins.CSPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in <beb2b64691c64e2b95b99491bd85442c>:0 
  at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in <206a0f2c6ee141f38e2ad549cde44d70>:0 
  at Oxide.Plugins.CovalencePlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x000b3] in <206a0f2c6ee141f38e2ad549cde44d70>:0 
  at Oxide.Core.Plugins.PluginManager.AddPlugin (Oxide.Core.Plugins.Plugin plugin) [0x00027] in <beb2b64691c64e2b95b99491bd85442c>:0 
  at Oxide.Core.OxideMod.PluginLoaded (Oxide.Core.Plugins.Plugin plugin) [0x00035] in <beb2b64691c64e2b95b99491bd85442c>:0 

Updated.
After the update, check the console message when plugin start , you should see a message indicating an issue in the config file.

i turned log to file to On before upload new version, but update working, thanks a lot :)