Hello Friend, Good that you are seeking a help here. Any relationship failures will take time to accept and adjust. She must be going through the transition phase and it's quite obvious to feel depressed.
Surely you can support her by taking her to a counseling psychologists, so that she learns the techniques to cope with the emotions and focus back to her normal life . If she is hesitant to meet directly, choose online counseling which should be convenient and easy to approach and follow up.
Next Steps
Feel free to reach out to me online through Practo app for further detailed evaluation and suitable solutions that you she can follow practically to overcome this problem. Be confident. She will be alright soon.