Missing BNB after swapping through Metamask Swap Function

Hello,

I have used the SWAP function in Metamask to convert my ETH to BNB. I used the recommendation of Metamask and proceeded with the conversion. I got a confirmation that the SWAP was successful and I was able to see the converted BNB.

The converted BNB was added to my remaining BNB. After that, I went to sleep. I checked my wallet in the morning and I saw that all of my BNB are gone.

I’ve checked the BSC mainnet transaction of my BNB and there was no activity of any transfer. The last transaction that is indicated in my Metamask dashboard is the SWAP of ETH to BNB.

txn Hash of SWAP ETH to BNB is
0x8a811f3da0ea2f3ac1ff78eed22b1397b913a9c5d1131a2140d8d96b04e1ab9d

There were 2-4 Metamask Swap Router that happened after the above mentioned transaction
0x40d43ff9997f77728b11a6200a5998147fb6eea5c7739a39b3f8a260e851fbd2
0xe00b21f787a9fd7947b1034a0f523ae3c0703b6647af393b9389628776d7cf1c
0x41b41bbac972fcef23d86e25baf038a011ca9c482a0d7c2961befa2316898d78
0xa04b2d706260fb62585d8049c5430f09f4743100cbb9891d1ae46294a618366d

Hovering in the red exclamation error icon beside the txn hash produces the error - “Error in Txn: execution reverted”
Clicking the Transaction details will indicate the errors below:
Red X Mark Error Icon - “Fail with error 'Claim AIR on Website FIRST - AirStackWeb dot com”
Error message under contract - " Warning! Error encountered during contract execution [ execution reverted ]"
Red Triangle Exclamation Mark error beside (Metamask: Swap Router) - “Error occurred during contract execution”

and then the last one that is I saw is
0xc1f34b8265710913dcf1de7c35f690d139eedb28a7ad72511c38cce23f6e6bb1

The above transaction hash transferred all of my BNB to a particular address. I can still see all of my BNB there. But I don’t see nor authorize this transaction to happen in my Metamask dashboard.

Please HELP!

Is there anyone who can provide clarifications or help?