So, I've been having recurring errors with in-app purchases ever since my game was first published back in 2016, with a crash rate of around 3%, and I was wondering if anyone around here recognizes these errors and has found a way to get around them?

So far, the most I've managed to do to reduce these errors is lessen the number of calls to the in app purchase function, but I haven't found a way to actually make the in app purchases no longer cause errors. Here are the two errors, below:

1) at Extensions.InAppControl.querySkuDetails (InAppControl.java:755)
at Extensions.InAppControl.queryInventory (InAppControl.java:871)
at Extensions.InAppControl.queryInventory (InAppControl.java:829)
at Extensions.InAppControl$3.run (InAppControl.java:927)
at java.lang.Thread.run (Thread.java:764)

2) at Extensions.InAppControl.queryPurchases (InAppControl.java:668)
at Extensions.InAppControl.queryInventory (InAppControl.java:865)
at Extensions.InAppControl.queryInventory (InAppControl.java:829)
at Extensions.InAppControl$3.run (InAppControl.java:927)
at java.lang.Thread.run (Thread.java:761)