The only advice I can give is this: Everyone goes through it. Things happening IRL can disturb any inspiration or the mood for writing (like when my X died last summer, I didn't feel like doing anything - not even posting or reading - for months).
Sometimes nothing is causing it, but you just lack the inspiration. If you are writing about a game, just sitting down and playing the game can sometimes spark that.
(I won't mention any names, but a certain ... person had this happen over a year ago, they didn't have the time to play and it was hindering their inspiration. Making playing the game a priority and writing taking second place made a huge difference, because when the game inspires, the words flow).
Take vitamins, exercise outdoors - clearing your head can sometimes work. Or my personal remedy for absolutely everything that ails you - go to a beach and bask in the sun for ten days. The sun replenishes and refreshes you, replaces vitamins that stress depleted. Always works for me no matter what the problem.
If all else fails, sometimes just getting away from it for a while works. - remember Bobg last year? He came back with a vengeance.
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