Unrecoverable Error

My installation has been working fine, however tonight during development my computer unexpectedly turned off. After rebooting and restarting Appian, any form I open gives me the the "An unrecoverable error was encountered while processing your request. To prevent losing your work, copy the expression below before reloading your browser." message.

Other forum posts suggest checking the custom.properties file against the URL; my properties match, and this was not a problem an hour ago before my computer restarted. Also, the server.log does not contain any errors.

OriginalPostID-243494