beheben
to fix
To eliminate an error, defect, problem, or damage and restore the original, correct condition.
Der Techniker konnte den Fehler im System schnell beheben.
The technician was able to fix the error in the system quickly.

to fix / withdraw
Loading your saved state.
to fix
To eliminate an error, defect, problem, or damage and restore the original, correct condition.
Der Techniker konnte den Fehler im System schnell beheben.
The technician was able to fix the error in the system quickly.

'Beheben' (to fix / withdraw) is an inseparable verb. The prefix 'be-' remains firmly attached to the verb stem 'heben' in all conjugated forms and tenses. The past participle is 'behoben'.
Ich hoffe, er behebt das Problem bald.
I hope he fixes the problem soon.
This verb is typically combined with negative things that you want to eliminate. Common objects are: 'einen Fehler' (an error), 'einen Mangel' (a defect), 'ein Problem' (a problem), or 'einen Schaden' (damage).
Die Firma muss den Schaden so schnell wie möglich beheben.
The company has to fix the damage as quickly as possible.
'Beheben' (to fix) belongs more to formal or technical language. You often find it in instructions, business emails, or reports about errors, for example in software.
Der Programmierer hat den Bug in der Software behoben.
The programmer fixed the bug in the software.
The meaning 'Geld abheben' (to withdraw money) is used almost exclusively in Austria and Switzerland. This meaning is not used in Germany.
In Wien können Sie an jeder Ecke Geld beheben.
In Vienna, you can withdraw money on every corner.
to solve / loosen
'lösen' and 'beheben' can both be used with problems. 'lösen' emphasizes that you find an answer or a way forward, for example with an exercise, a puzzle, or a general problem. 'beheben' means that you fix an error, damage, or defect so that something works properly again. Learners may confuse the words because both are positively connected with problems. For thinking tasks, 'lösen' is more natural; for technical errors, damage, or defects, 'beheben' fits better.

Der Techniker behebt heute den Fehler im System.
The technician is fixing the error in the system today.
Gemeinsam lösen wir das Problem für das Projekt.
Together, we solve the problem for the project.