Fix weekend candles in Pivot Point-Indicator

I have the attached Pivot Points-indicator. Everything works nicely with brokers where the markets open monday at 0:00 broker time.

However, some brokers print weekend-candles.  For example: The markets open sunday at broker time 23:00. Therefore the broker has 24 hours of price-data on friday and monday, but only one hour of price-data on sunday.

This causes the pivot points to be calculated the wrong way for mondays, because the calculation is based on only one hour of price-data on sunday.

>>  See attached screenshot.

I therefore need the indicator adjustedin the following way: Check if the last day has less than X hours of price-data (X should be adjustable in the inputs). Always base the calculation on the last that had X or more hours of price-data.

Everything in the indicator else should stay the same.