Hello
Hardware version vmx-13 is supported since ESXi version 6.5.
If you have ESXi version 5.5, the Hardware version must be vmx-10 on the VM. You must get an OVA for ESXi version 5.5 or if you generated it from a VM, you must change the hardware version to vmx-10 on the VM and then re-generate the OVA.
Another option is to upgrade ESXi to version 6.5.
You could try to unzip the OVA file and look for the file xxxx .ovf, and try to edit this file to change the vmx-13 to vmx-10, it might work.