Describe the bug
Multiple LUA errors on load in.

To Reproduce
Steps to reproduce the behavior:

1. Load into game

Additional context
Generates the following LUA errors:

2x MazeHelper/Practice.lua:19: attempt to index field 'ButtonsData' (a nil value)
[string "@MazeHelper/Practice.lua"]:19: in main chunk

Locals:
_ = "MazeHelper"
MazeHelper =

{
MISTCALLER_QUOTES = {
}
currentLocale = "enUS"
M = {
}
L = {
}
MISTCALLER_QUOTES_CURRENT = {
}
E = {
}
}
L = {
ENGLISH_FLOWER_NOFULL_CIRCLE = "Empty flower in a circle"
SETTINGS_USE_COLORED_SYMBOLS_LABEL = "Use colored symbols"
SETTINGS_SET_MARKER_SOLUTION_PLAYER_TOOLTIP = "Automatically set green marker on player if he clicked on symbol that became the solution"
SETTINGS_AA_ALWAYS = "Always"
FLOWER_NOFULL_NOCIRCLE = "Empty flower without a circle"
SETTINGS_AA_PARTY_LEADER = "Party leader"
SETTINGS_SHOW_LARGE_SYMBOL_TOOLTIP = "Show a large symbol at the top of the screen if there is a ready-made solution|n|nRight click to close"
MAZE_HELPER_PRINT = "|cffffb833Maze Helper:|r %s"
LEAF_FULL_NOCIRCLE = "Filled leaf without a circle"
SETTINGS_SHOW_SEQUENCE_NUMBERS_LABEL = "Show sequence numbers"
ENGLISH_FLOWER_FULL_NOCIRCLE = "Filled flower without a circle"
MINIMAP_BUTTON_COMMAND_SHOW = "Use /mh minimap to show the minimap button again"
SETTINGS_SHOW_AT_BOSS_TOOLTIP = "Show this helper when fight with «Mistcaller»"
MISTCALLER_NAME = "Mistcaller"
PASSED = "Passed"
ENGLISH_LEAF_FULL_CIRCLE = "Filled leaf in a circle"
SETTINGS_AUTO_PASS_TOOLTIP = "Auto «|cff66ff6ePassed|r» on successful passage through the mists"
SETTINGS_ALPHA_BACKGROUND_TOOLTIP = "Set the alpha for the background of the main window"
SENDED_BY = "Sended by %s"
RESETED_PLAYER = "%s |cffff0537resetted|r this mini-game"
CHOOSE_SYMBOLS_1 = "Select 1 more symbol"
SETTINGS_USE_COLORED_SYMBOLS_TOOLTIP = "Use colored symbols instead of black and white"
SETTINGS_AUTOANNOUNCER_TOOLTIP = "Automatically send a ready-made solution to the group chat"
SETTINGS_SCALE_TOOLTIP = "Set the scale of the main window"
SETTINGS_PREDICT_SOLUTION_TOOLTIP = "Predict the solution on 2-3 steps, but |cffff6a00first|r picked symbol |cffff6a00must be|r the entrance symbol|n|nYou can temporarily disable the prediction by clicking on the first symbol with the SHIFT pressed (or by double-click)"
PASSED_PLAYER = "%s clicked on «|cff66ff6ePassed|r» button"
SETTINGS_ALPHA_BACKGROUND_LARGE_SYMBOL_LABEL = "Large symbol's background alpha"
SETTINGS_ALPHA_BACKGROUND_LARGE_SYMBOL_TOOLTIP = "Set the alpha for the background of the large symbol"
CHOOSE_SYMBOLS_2 = "Select 2 more symbols"
ENGLISH_LEAF_NOFULL_CIRCLE = "Empty leaf in a circle"
CHOOSE_SYMBOLS_3 = "Select 3 more symbols"
SETTINGS_AUTOANNOUNCE_CHANNEL_TOOLTIP = "Select the chat channel to which the solution will be sent"
SETTINGS_PREDICT_SOLUTION_LABEL = "Predict solution"
ENGLISH_LEAF_FULL_NOCIRCLE = "Filled leaf without a circle"
CLEARED_BY = "Cleared by %s"
SETTINGS_REVEAL_RESETTER_TOOLTIP = "Type in the chat the name of the player who did click on the «Reset» or «Passed» button (only for yourself)"
SETTINGS_START_IN_MINMODE_TOOLTIP = "The first appearance will occur in minimized mode"
FLOWER_FULL_NOCIRCLE = "Filled flower without a circle"
SETTINGS_AUTOANNOUNCE_CHANNEL = "Chat channel"
FLOWER_NOFULL_CIRCLE = "Empty flower in a circle"
LOCKED_DRAG_BUTTON_TOOLTIP = "Dragging is locked"
SETTINGS_AUTO_TOGGLE_VISIBILITY_TOOLTIP = "Automatically toggle the visibility of the main window"
SETTINGS_SCALE_LARGE_SYMBOL_LABEL = "Scale of large symbol"
SETTINGS_AUTO_TOGGLE_VISIBILITY_LABEL = "Auto show/hide"
FLOWER_FULL_CIRCLE = "Filled flower in a circle"
SETTINGS_SKULLMARKER_USE_MODIFIER_TOOLTIP = "Use modifier key"
MINIMAP_BUTTON_RMB = "RMB"
SETTINGS_SHOW_AT_BOSS_LABEL = "Show at Boss"
SETTINGS_SKULLMARKER_CLONE_LABEL = "Skull on Clone"
PRACTICE_BUTTON_TOOLTIP = "Practice"
SETTINGS_PREDICTED_COLORPICKER = "Predicted"
LEAF_NOFULL_NOCIRCLE = "Empty leaf without a circle"
ANNOUNCE_SOLUTION_WITH_ENGLISH = "%s / %s"
SETTINGS_RECEIVED_COLORPICKER = "Received"
PRACTICE_PLAY_AGAIN = "Play again"
LEAF_FULL_CIRCLE = "Filled leaf in a circle"
SETTINGS_AUTO_PASS_LABEL = "Auto pass"
ANNOUNCE_SOLUTION = "%s"
SETTINGS_ALPHA_BACKGROUND_LABEL = "Background alpha"
SETTINGS_BORDERS_COLORS = "Borders c

Also:
2x MazeHelper/MazeHelper.lua:3: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@MazeHelper/MazeHelper.lua"]:3: in main chunk

Locals:
ADDON_NAME = "MazeHelper"
MazeHelper =

{
MISTCALLER_QUOTES = {
}
currentLocale = "enUS"
M = {
}
L = {
}
MISTCALLER_QUOTES_CURRENT = {
}
E = {
}
}
L = {
ENGLISH_FLOWER_NOFULL_CIRCLE = "Empty flower in a circle"
SETTINGS_USE_COLORED_SYMBOLS_LABEL = "Use colored symbols"
SETTINGS_SET_MARKER_SOLUTION_PLAYER_TOOLTIP = "Automatically set green marker on player if he clicked on symbol that became the solution"
SETTINGS_AA_ALWAYS = "Always"
FLOWER_NOFULL_NOCIRCLE = "Empty flower without a circle"
SETTINGS_AA_PARTY_LEADER = "Party leader"
SETTINGS_SHOW_LARGE_SYMBOL_TOOLTIP = "Show a large symbol at the top of the screen if there is a ready-made solution|n|nRight click to close"
MAZE_HELPER_PRINT = "|cffffb833Maze Helper:|r %s"
LEAF_FULL_NOCIRCLE = "Filled leaf without a circle"
SETTINGS_SHOW_SEQUENCE_NUMBERS_LABEL = "Show sequence numbers"
ENGLISH_FLOWER_FULL_NOCIRCLE = "Filled flower without a circle"
MINIMAP_BUTTON_COMMAND_SHOW = "Use /mh minimap to show the minimap button again"
SETTINGS_SHOW_AT_BOSS_TOOLTIP = "Show this helper when fight with «Mistcaller»"
MISTCALLER_NAME = "Mistcaller"
PASSED = "Passed"
ENGLISH_LEAF_FULL_CIRCLE = "Filled leaf in a circle"
SETTINGS_AUTO_PASS_TOOLTIP = "Auto «|cff66ff6ePassed|r» on successful passage through the mists"
SETTINGS_ALPHA_BACKGROUND_TOOLTIP = "Set the alpha for the background of the main window"
SENDED_BY = "Sended by %s"
RESETED_PLAYER = "%s |cffff0537resetted|r this mini-game"
CHOOSE_SYMBOLS_1 = "Select 1 more symbol"
SETTINGS_USE_COLORED_SYMBOLS_TOOLTIP = "Use colored symbols instead of black and white"
SETTINGS_AUTOANNOUNCER_TOOLTIP = "Automatically send a ready-made solution to the group chat"
SETTINGS_SCALE_TOOLTIP = "Set the scale of the main window"
SETTINGS_PREDICT_SOLUTION_TOOLTIP = "Predict the solution on 2-3 steps, but |cffff6a00first|r picked symbol |cffff6a00must be|r the entrance symbol|n|nYou can temporarily disable the prediction by clicking on the first symbol with the SHIFT pressed (or by double-click)"
PASSED_PLAYER = "%s clicked on «|cff66ff6ePassed|r» button"
SETTINGS_ALPHA_BACKGROUND_LARGE_SYMBOL_LABEL = "Large symbol's background alpha"
SETTINGS_ALPHA_BACKGROUND_LARGE_SYMBOL_TOOLTIP = "Set the alpha for the background of the large symbol"
CHOOSE_SYMBOLS_2 = "Select 2 more symbols"
ENGLISH_LEAF_NOFULL_CIRCLE = "Empty leaf in a circle"
CHOOSE_SYMBOLS_3 = "Select 3 more symbols"
SETTINGS_AUTOANNOUNCE_CHANNEL_TOOLTIP = "Select the chat channel to which the solution will be sent"
SETTINGS_PREDICT_SOLUTION_LABEL = "Predict solution"
ENGLISH_LEAF_FULL_NOCIRCLE = "Filled leaf without a circle"
CLEARED_BY = "Cleared by %s"
SETTINGS_REVEAL_RESETTER_TOOLTIP = "Type in the chat the name of the player who did click on the «Reset» or «Passed» button (only for yourself)"
SETTINGS_START_IN_MINMODE_TOOLTIP = "The first appearance will occur in minimized mode"
FLOWER_FULL_NOCIRCLE = "Filled flower without a circle"
SETTINGS_AUTOANNOUNCE_CHANNEL = "Chat channel"
FLOWER_NOFULL_CIRCLE = "Empty flower in a circle"
LOCKED_DRAG_BUTTON_TOOLTIP = "Dragging is locked"
SETTINGS_AUTO_TOGGLE_VISIBILITY_TOOLTIP = "Automatically toggle the visibility of the main window"
SETTINGS_SCALE_LARGE_SYMBOL_LABEL = "Scale of large symbol"
SETTINGS_AUTO_TOGGLE_VISIBILITY_LABEL = "Auto show/hide"
FLOWER_FULL_CIRCLE = "Filled flower in a circle"
SETTINGS_SKULLMARKER_USE_MODIFIER_TOOLTIP = "Use modifier key"
MINIMAP_BUTTON_RMB = "RMB"
SETTINGS_SHOW_AT_BOSS_LABEL = "Show at Boss"
SETTINGS_SKULLMARKER_CLONE_LABEL = "Skull on Clone"
PRACTICE_BUTTON_TOOLTIP = "Practice"
SETTINGS_PREDICTED_COLORPICKER = "Predicted"
LEAF_NOFULL_NOCIRCLE = "Empty leaf without a circle"
ANNOUNCE_SOLUTION_WITH_ENGLISH = "%s / %s"
SETTINGS_RECEIVED_COLORPICKER = "Received"
PRACTICE_PLAY_AGAIN = "Play again"
LEAF_FULL_CIRCLE = "Filled leaf in a circle"
SETTINGS_AUTO_PASS_LABEL = "Auto pass"
ANNOUNCE_SOLUTION = "%s"
SETTINGS_ALPHA_BACKGROUND_LABEL = "Background alpha"
SETTINGS_BORDERS_COLORS = "