Hello
I had the same error (f 59) (10 solar panel 550 w. installed in series + voltronic 5,5k)
I resolved the error following those steps :
I didn't removed any panels to reduce the voltage
I reorganized the panels in two parts (in series as well)
So instead of installing all in series and having a over voltage which cause the cutoff of power
From inverter house,
I divided them in two series separated groups and the result was satisfying (lower voltage)
It's a practical way to resolve this issue without losing the juice of removed panels.
It's working properly since 10 days till now 🤞🤞🤞