Expansion installation prompt is broken

Image

Time: 4/10/16 5:30PM
Frequency: Always

Steps:
-Tried closing and reopening the window
-Tried using Alt+Enter to scroll down to where the buttons are; clicking button/prompt window produces no response
-Tried disabling and reenabling the Automatic Updates in the launcher
-Tried uninstalling and reinstalling the program


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 8.1 64-bit (6.2, Build 9200) (9600.winblue_r9.150322-1500)
SYSTEM_CPU Intel(R) Pentium(R) CPU N3530 @ 2.16GHz (4 CPUs), ~2.2GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 4 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS A02
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 3979.203MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 6155.203MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 456.820GB SYSTEM_FREEDISC_SPACE 173.165GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS Intel(R) HD Graphics
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP Intel(R) HD Graphics
SYSTEM_GRAPHICS_MAKER Intel Corporation
SYSTEM_GRAPHICS_VRAM 32.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM 1760.000 MB
SYSTEM_GRAPHICS_DAC Internal
SYSTEM_GRAPHICS_DISPLAY_MODE 1366 x 768 (32 bit) (59Hz)
SYSTEM_GRAPHICS_DRIVER igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igdumdim32,igd10iumd32,igd10iumd32
SYSTEM_GRAPHICS_DRIVER_VERSION 10.18.0010.3408
SYSTEM_GRAPHICS_DRIVER_DATE 1/16/2014 2:08:42 PM
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND Speakers / Headphones (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {0131A119-633F-4BC5-A0C6-769BA0221BF6}
SYSTEM_SOUND_DEVICE_NAME RTKVHD64.sys
SYSTEM_SOUND_DRIVER_VERSION 6.00.0001.7203
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 3/19/2014 8:07:56 PM
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFCBE2D0-B86B-11E4-8002444553540000}
SYSTEM_INPUT_NAME Airplane Mode Switch
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFD09DC0-B86B-11E4-8007444553540000}
SYSTEM_INPUT_NAME HIDI2C Device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {2C860D90-D963-11E4-8003444553540000}
SYSTEM_INPUT_NAME Generic Virtual HID Driver
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 5 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {2C8AC880-D963-11E4-8007444553540000}
SYSTEM_INPUT_NAME Generic Virtual HID Driver
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFD2E7B0-B86B-11E4-8008444553540000}
SYSTEM_INPUT_NAME Touchscreen
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFDF6AD0-B86B-11E4-8009444553540000}
SYSTEM_INPUT_NAME Touchscreen
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFDF6AD0-B86B-11E4-800A444553540000}
SYSTEM_INPUT_NAME Touchscreen
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {DFDF6AD0-B86B-11E4-800B444553540000}
SYSTEM_INPUT_NAME ST_SENSOR_HUB
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0