I do not believe that we have enough information here to really understand your problem. If you can provide additional details we might be able to provide better answers. But I do not see anything in what you have posted that indicates that the VPN module is causing the router to reload.
What I do see is consistent with what I frequently see AFTER a router reload:
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
the interface just came up. Is this after the router reload?
%CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for
I frequently see this after a router reload. I believe that the explanation is that there had been an IPSec Security Association before the router rebooted. After the reboot, this router obviously has no SA, but the remote does have an existing SA and has sent a packet using that SA. The router rejects the packet because invalid SPI means that the SPI is related to the SA that no longer exists.
I have not seen this much, but it looks to me like it is trying to clean up something AFTER a reload rather than causing a reload. If Kamal has information that indicates that this may be a hardware problem, then perhaps the module needs to be replaced. But I am not seeing evidence that it causes the router to reload.
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The following licenses have been activated on my router :