Hi, please do these:
– disable/uncheck “Anti Spam” option in HMWP General settings tab
– disable/uncheck “Directory List” option in General settings tab
– disable/uncheck “Hide PHP Files” option in General settings tab
– if still the issue then empty out “Ajax URL” field in Permalinks & URLs tab
– if still the issue then try disabling IDS option in IDS Firewall tab
Let us know!