This is the 3885th most frequent Korean word.
없다면
"없다면" means "if [something] doesn't exist" or "if [something] is not there" in English.
없다면 here is conditional, expressing 'if' when there's absence of time.
시간이 없다면 어떻게 처리할까요?
If there is no time, how shall we handle it?
없다면 in this sentence is used to indicate dependency on the availability of help.
도움이 없다면 이것은 어려울 것입니다.
If there is no help, this would be difficult.
없다면 here signifies a prompt to take action in the absence of a plan.