Error in re-building vignettes:
  ...
Loading required package: Matrix
Warning in testOverdispersion(simulationOutput) :
  You have called the non-parametric test for overdispersion based on the scaled residuals. Simulations show that this test is less powerful for detecting overdispersion than the default uniform test on the sclaed residuals, and a lot less powerful than a parametric overdispersion test, or the non-parametric test on re-simulated residuals. The test you called is only implemented for testing / development purposes, there is no scenario where it would be preferred. See vignette for details.
Error in try({ : x
Warning in simulateResiduals(fittedModel = fittedModel, refit = 2) :
  DHARMa::simulateResiduals warning: on refit = T, at least one of the refitted models produced an error. Inspect the refitted model values. Results may not be reliable.
Warning in testOverdispersion(simulationOutput = simulationOutput) :
  You have called the non-parametric test for overdispersion based on the scaled residuals. Simulations show that this test is less powerful for detecting overdispersion than the default uniform test on the sclaed residuals, and a lot less powerful than a parametric overdispersion test, or the non-parametric test on re-simulated residuals. The test you called is only implemented for testing / development purposes, there is no scenario where it would be preferred. See vignette for details.
Warning in checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 0.00194094 (tol = 0.001, component 1)
pandoc: unable to decommit memory: Invalid argument
pandoc: unable to decommit memory: Invalid argument
pandoc: Could not fetch Overdispersion.png
Overdispersion.png: openBinaryFile: does not exist (No such file or directory)
pandoc: unable to decommit memory: Invalid argument
pandoc: unable to decommit memory: Invalid argument
Error: processing vignette ‘DHARMa.Rmd’ failed with diagnostics:
pandoc document conversion failed with error 67
Execution halted