Script crashes API server when used

When triggered with any chosen check, the script crashes the API server with the following error:

For reference, the error message generated was: TypeError: attrValue.match is not a function TypeError: attrValue.match is not a function at apiscript.js:14586:29 at String.replace (<anonymous>) at processFormula (apiscript.js:14580:27) at processTokenRollData (apiscript.js:14612:46) at apiscript.js:14867:24 at Array.map (<anonymous>) at handleRolls (apiscript.js:14866:45) at handleInput (apiscript.js:14906:63) at file:///home/node/d20-api-server/src/pubsub2.js:42:46 at Map.forEach (<anonymous>)

Hadn't changed anything since I had successfully been using it for several years. Set to use Latest version from the API library. Tried in both the normal and experimental API server. Using it for a purchased 5e module with D&D 5e 2014 character sheets and under Jumpgate.

Thread of similar problems here: https://app.roll20.net/forum/post/12198934/group-check-slash-apply-damage-not-working

Start with the stack trace in apiscript.js around lines 14580-14586, then follow processTokenRollData and handleRolls through the API server entry point in src/pubsub2.js. Reproduce the failure with a chosen check in the normal and experimental API servers, and compare it with the similar-problems thread; done means the script no longer crashes the API server.