Fixing an existing highly profitable Pinescript Code

Hello dear, I want to fix the attached pine script code in version 5 of Tradingview for a strategy I formed which is highly profitable but the signals for Buy, Sell, Exit Buy and Exit Sell are not occurring on the chart at the right points. If someone can help me fix the attached code it would be great for even them as the strategy is highly profitable in trending markets and can be easily used to implement on a Trading Bot. The strategy is as follows I have 2 Exponential Moving Averages plotted on the chart, mainly EMA of 144 and EMA of 169. Once you plot these EMA's on the chart, they appear like a tunnel. Buy Condition is - If the candle closes above both the EMA's, then a Buy Plot shape should occur on that candle. Exit Buy Condition is - if the candle breaks the low of both the EMA's, even if not on a closing basis (even if the low of the candle is below both the EMA's), then a Exit Buy Plot shape should occur on that candle. Sell Condition is - If the candle closes below both the EMA's, then a Sell Plot shape should occur on that candle. Exit Sell Condition is - if the candle breaks the high of both the EMA's, even if not on a closing basis (even if the high of the candle is above both the EMA's), then a Exit Buy Plot shape should occur on that candle. Also the most important aspect is that these shapes should not occur repeatedly. They should only occur on the specific candle when the condition is met. I have attached the current pinescript code that I drafted but it isint working properly.