These plugins look to receive a lot of attacks. If you are using them, please be careful. You can use LogPress Plugin to catch IP Addresses performing this mis-behavior.
plugin
Power Box – WordPress Widget for Micro Contents
Methods of Installing WordPress Plugins
Helper plugin for Troubleshooters: My-Tables
How many records do you have in each WordPress database tables? My-Tables plugin might be helpful for you troubleshooting your issues over there.
HCI – Hosted Content Importer for WordPress
Tired of static content in the blogs? Here is something new – my HCI plugin. It will fetch the content programmatically for the given Post IDs in WordPress or Remote Content IDs.