How do I Keep the Leverage Above 0.8?

I tried everything I could. But I just can't fix this. I'm still quite new here. Someone please help! What can I do to keep leverage above 0.8?

I have these code in my rebalance function

    objective = opt.MaximizeAlpha(predictions_top_bottom)

constrain_gross_leverage = opt.MaxGrossExposure(1.05)
constrain_pos_size = opt.PositionConcentration.with_equal_bounds(
-0.03,
+0.03,
)
market_neutral = opt.DollarNeutral(tolerance=0.01)

if predictions_top_bottom.index.duplicated().any():

sector_neutral = opt.NetGroupExposure.with_equal_bounds(
labels=context.risk_factors.Sector.dropna(),
# min=-0.0001,
# max=0.0001,
min=-0.2,
max=0.2,
)

order_optimal_portfolio(
objective=objective,
constraints=[
constrain_gross_leverage,
constrain_pos_size,
market_neutral,
sector_neutral,
],
)

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