Getting error: Local file '%s' not found.

Smart FTP has been working fine for me for a few years now. Today it just suddently gives me this error. I'm using verson 1.5 since I really dislike 2.0. Anyone know how I can fix this error?

	SmartFTP v1.5.990.0

	Local file '%s' not found.

	Cannot login waiting to retry (30s)...

	Continue to login attempt 2...

	Local file '%s' not found.

	Cannot login waiting to retry (30s)...

	Continue to login attempt 3...

	Local file '%s' not found.

	Cannot login waiting to retry (30s)...

SmartFTP 1.x is not longer supported.