I Have L1A visa status but don't have L1A visa stamp in my passport

[LiannaMinasyan]

I have B1/B2 valid visa stamp Can I reenter with B1/B2 visa stamp without losing my L1A status? if yes I will have another I-94, will this I-94 rewrite my current L1A I-94 or not.
Do I have risks leaving the country as I can't get a visa stamp because of close embassies?