reviewstack.dev crashes for some github PRs

[SureneruS]

When I try to open a github PR, it crashes with the following error consistently:

GET https://reviewstack.dev/cercli/recruitment-backend/pull/159 404 (Not Found)
react-dom@18.2.0-production.js:121 TypeError: Cannot read properties of undefined (reading 'oldStart')
    at SplitDiffView.tsx:264:64
    at of (react-dom@18.2.0-production.js:109:301)
    at zf (react-dom@18.2.0-production.js:127:55)
    at pi (react-dom@18.2.0-production.js:125:288)
    at oi (react-dom@18.2.0-production.js:124:325)
    at Rk (react-dom@18.2.0-production.js:256:479)
    at Si (react-dom@18.2.0-production.js:195:185)
    at Pk (react-dom@18.2.0-production.js:195:116)
    at Nd (react-dom@18.2.0-production.js:194:492)
    at Qf (react-dom@18.2.0-production.js:187:439)
wf @ react-dom@18.2.0-production.js:121
c.callback @ react-dom@18.2.0-production.js:122
Fh @ react-dom@18.2.0-production.js:92
Ki @ react-dom@18.2.0-production.js:180
Ii @ react-dom@18.2.0-production.js:179
Ik @ react-dom@18.2.0-production.js:178
Sk @ react-dom@18.2.0-production.js:197
yb @ react-dom@18.2.0-production.js:196
Oi @ react-dom@18.2.0-production.js:186
S @ react@18.2.0-production.js:17
U @ react@18.2.0-production.js:21