You have to go back to the rules regarding the stall count.
After play stops the stall count is resumed as follows:
9.5.1. After an uncontested breach by the defence the stall count restarts at “Stalling one (1)”.
9.5.2. After an uncontested breach by the offence the stall count restarts at maximum nine (9).
9.5.3. After a contested stall-out the stall count restarts at “Stalling eight (8 )”.
9.5.4. After all other calls, including “pick”, the stall count restarts at maximum six (6).9.6. To restart a stall count “at maximum n”, where “n” is determined by 9.5.2, or 9.5.4, means the following:
9.6.1. If “x” is the last number fully uttered prior to the call, then the stall count resumes at “Stalling (x plus one)” or “Stalling n”, whichever of those two numbers is lower.
So play should restart at maximum six.
Example 1: “Stalling 1,2,3,4, ” – “Fast Count” – “Contest” , Check-In with “Stalling 5”.
Example 2: “Stalling 1,2,3,4,5,6,7 ” – “Fast Count” – “Contest” , Check-In with “Stalling 6”.