Commands fail to run including opening new query

Issue Type: Bug

Opening new query window fails. Using "Toggle developer tools" command, was able to see following error:

notificationsAlerts.ts:38 Error: Running the contributed command:'mysql.newQuery' failed.
at e._executeContributedCommand (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:486:51)
at e.$executeContributedCommand (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:486:443)
at t._doInvokeHandler (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:644:118)
at t._invokeHandler (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:643:744)
at t._receiveRequest (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:642:322)
at t._receiveOneMessage (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:641:155)
at e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:638:960
at e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:38:994
at e.fire (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:44:113)
at a (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:170:213)
at Socket.f._socketDataListener (e:\VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:170:434)
at Socket.emit (events.js:182:13)
at addChunk (_stream_readable.js:279:12)
at readableAddChunk (_stream_readable.js:264:11)
at Socket.Readable.push (_stream_readable.js:219:10)
at Pipe.onread (net.js:636:20)
t.onDidNotificationChange @ notificationsAlerts.ts:38

Extension version: 0.3.0
VS Code version: Code 1.31.1 (1b8e8302e405050205e69b59abb3559592bb9e60, 2019-02-12T02:20:54.427Z)
OS version: Windows_NT x64 10.0.17763

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 x 2808)|
|GPU Status|2d_canvas: enabled
checker_imaging: disabled_off
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
multiple_raster_threads: enabled_on
native_gpu_memory_buffers: disabled_software
rasterization: enabled
surface_synchronization: enabled_on
video_decode: enabled
webgl: enabled
webgl2: enabled|
|Memory (System)|31.96GB (15.05GB free)|
|Process Argv||
|Screen Reader|no|
|VM|40%|