u/Exact_Grocery_8097

I applied for a long stay student internship visa and got a refusal today my internship starts in July and i am really freaking out what steps to take to make sure i get it the second time I don’t wanna gamble
PLEASE HELPPP
Also will it decrease my chances of getting a visa now

I submitted a cover letter and the following documents:

1. Signed Long-Stay Visa Application Form & France-Visas Receipt
2. Valid Passport (AM027669, valid till 22/02/2036)
3. Passport photographs
4. Avis Favorable — French Ministry of Interior
5. Convention de Stage — signed by all parties
6. NOC & Bonafide Certificate — IHM Lucknow
7. Proof of Accommodation — Auberge des Templiers
8. Travel Insurance Certificate (Care Health, Policy No. A8849998)
9. Sponsor's ID, Bank Statement, ITR & Sponsorship Affidavit

Should i re apply or file an appeal
Also what can be the possible reason for my refusal what extra documents should i prvide

I have to do a correction in hours (have to change it to 39 as written in my convention de stage) please check the rest also in my insurance on the second page the name of my educational institution is written incorrectly will that be a problem