ZeroDivisionError

[Squaldo]

wat is wrong when i get this error?
Traceback (most recent call last):
File "bot.py", line 429, in
profit = 100 - ((float(available_balance) - float(realised_pnl)) * 100 / float(available_balance))
ZeroDivisionError: float division by zero

i als noticed that trade sizes are 0:
What Asset To trade? xrp
Min lot size for XRPUSDT is: 1
Max leverage is: 75
1x size: 0.0
0.1x is: 0.0
0.01x: 0.0

Maybe an api problem?