hi，please help me

[wudizuixiaosa]

Hi, first of all, praise your work, because I'm a beginner, so I want to ask you how to use your Ranger optimizer. Because I see a lot of parameters in your code settings. I am currently using

optimizer = Ranger21(model.parameters(), lr = 3e-5, num_ epochs = 90, num_ batches_ per_ epoch = 16)

However, assertionerror: LR wentnegative is displayed