Getting Error in read_json_body() while using template-transformer plugin

Getting Error while transforming JSON Body

Response Headers :
Age →0
Connection →keep-alive
Content-Encoding →gzip
Content-Type →application/json
Date →Tue, 11 Oct 2022 12:46:08 GMT
ETag →"83d3f99d-48ae-11ed-963d-819ea9e4b46d-2022-10-10T15:16:29.157000000Z–gzip"
Last-Modified →Mon, 10 Oct 2022 15:16:29 GMT
Transfer-Encoding →chunked
Vary →Accept, Accept-Encoding
Via →kong/2.8.1.3-enterprise-edition
X-Backend-History →facade_service
X-Cache →MISS
X-Cache-Origin →EAST
X-Kong-Proxy-Latency →13
X-Kong-Upstream-Latency →309
X-Shard-History →varnish_east1
X-Varnish →121148358
requestId →1234

Error Log :
2022/10/11 12:42:59 [error] 27254#0: *4437 [lua] handler.lua:30: read_json_body(): {“devices”:[{“identifier”:“ANBV”,“role”:“ce”,“hostname”:“ce-123.on”,“network”:“CRAN”,“asn”:“33662”,“status”:“IN_SERVICE”,“subNetwork”:“COMMERCIAL”}]} while sending to client, client: 192.1.1.1, server: kong, request: “GET /ndsdeviceinfo?fqdn=cdummydata HTTP/1.1”, upstream: “https://192.1.1.1:443/nds/v1/deviceInfo?fqdn=dummydata”, host: “192.1.1.1:8000”