When is an argument considered to be a logical fallacy?

When the argument doesn't make sense
When an illogical premise is presented with logical supporting information
When there is a logical premise without data to support it
When a logical premise is supported by very general claims
When the author or speaker is not a credible representative of the topic
When a logical premise is supported by claims that don't address the argument's point
When certain claims only seem to lead to other, unsupported claims